Intelligent connection method of audio equipment

Abstract

The invention is suitable for the technical field of intelligent sound box systems, and provides an intelligent connection method of audio equipment. The intelligent connection method of the audio equipment comprises the following steps: detecting a first binding state of the audio equipment, wherein the first binding state is used for representing whether an intelligent microphone is bound with a target intelligent sound box or not; when the first binding state is a bound state, sending a first broadcast signal in a preset frequency band; in response to a first connection request sent by the target intelligent sound box, analyzing the first connection request to obtain a first connection parameter of the target intelligent sound box, the first connection request being generated by the target intelligent sound box according to the first broadcast signal; and connecting the target intelligent loudspeaker box according to the first connection parameter. According to the embodiment of the invention, the problem of mixed connection in a multi-device coexistence scene can be effectively solved, and disorder and interference of audio signals are avoided, so that the stability and quality of audio transmission are improved.

Description

Technical Field

[0001] The present application belongs to the technical field of speaker systems, and in particular relates to an intelligent connection method for audio devices. Background Art

[0002] In the current field of audio device connectivity, wireless communication between microphones and speakers primarily relies on Bluetooth technology. Due to its convenience and wide compatibility, Bluetooth technology has been widely used in scenarios such as smart audio systems, conference systems, and home entertainment systems. However, with the increase in the number of smart devices and the increasing complexity of usage scenarios, especially in environments where multiple devices coexist, traditional Bluetooth connection methods are prone to device confusion, where a speaker mistakenly connects to an unpaired microphone, or a microphone is recognized and attempted to connect by multiple speakers at the same time. These confusion issues not only affect the stability and quality of audio transmission, but can also cause confusion and interference in the audio signal, severely impacting the user experience. Summary of the Invention

[0003] The embodiments of the present application provide an intelligent connection method for audio devices, which can solve the problem of easy mixed connection of audio devices in related technologies.

[0004] In a first aspect, an embodiment of the present application provides a smart connection method for an audio device, which is applied to a smart microphone. The method includes:

[0005] Detecting its own first binding state, where the first binding state is used to indicate whether the smart microphone is bound to the target smart speaker;

[0006] When the first binding state is the bound state, sending a first broadcast signal within a preset frequency band;

[0007] In response to a first connection request sent by a target smart speaker, parsing the first connection request to obtain a first connection parameter of the target smart speaker, wherein the first connection request is generated by the target smart speaker according to the first broadcast signal;

[0008] Connect to the target smart speaker according to the first connection parameter.

[0009] In a second aspect, an embodiment of the present application provides a smart connection method for audio devices, which is applied to a smart speaker. The method includes:

[0010] Detect its own second binding status, which is used to indicate whether the smart speaker is bound to the target smart microphone;

[0011] When the second binding state is the bound state, searching for a third broadcast signal within the preset frequency band, and parsing the searched third broadcast signal to obtain corresponding second identity information and third connection parameters;

[0012] Determining whether the second identity information matches the microphone information of the target smart microphone;

[0013] When the second identity information matches the microphone information of the target smart microphone, generating a second connection request, and sending the second connection request to the target smart microphone;

[0014] The target smart microphone is connected according to the third connection parameter.

[0015] In a third aspect, an embodiment of the present application provides a method for intelligently connecting an audio device, which is applied to a smart speaker system. The smart speaker system includes a smart microphone and a smart speaker. The method includes:

[0016] The smart microphone detects its third binding state, which is used to indicate whether the smart microphone is bound to the target smart speaker;

[0017] When the third binding state is the bound state, the smart microphone sends a fifth broadcast signal within the preset frequency band;

[0018] The smart speaker detects its fourth binding state, which is used to indicate whether the smart speaker is bound to the target smart microphone;

[0019] When the fourth binding state is the bound state, the smart speaker searches for a fifth broadcast signal within the preset frequency band, and parses the searched fifth broadcast signal to obtain corresponding fourth identity information and fifth connection parameters;

[0020] The smart speaker determines whether the fourth identity information matches the microphone information of the target smart microphone;

[0021] When the fourth identity information matches the microphone information of the target smart microphone, the smart speaker connects to the target smart microphone according to the fifth connection parameter, generates a third connection request, and sends the third connection request to the target smart microphone;

[0022] When the smart microphone receives the third connection request, the smart microphone parses the third connection request to obtain a sixth connection parameter of the target smart speaker;

[0023] The smart microphone connects to the target smart speaker according to the sixth connection parameter.

[0024] In a fourth aspect, an embodiment of the present application provides a smart microphone, comprising a memory, a processor, and a computer program stored in the memory and runnable on the processor. When the processor executes the computer program, the steps of the smart connection method for audio devices of the first aspect described above are implemented.

[0025] In a fifth aspect, an embodiment of the present application provides a smart speaker, comprising a memory, a processor, and a computer program stored in the memory and runnable on the processor. When the processor executes the computer program, the steps of the smart connection method for audio devices of the second aspect described above are implemented.

[0026] In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, it implements the steps of the above-mentioned intelligent connection method for audio devices.

[0027] The beneficial effects of the embodiments of the present application compared to the prior art are as follows: the embodiments of the present application detect the first binding state of the microphone, and when the first binding state is the bound state, send a first broadcast signal within a preset frequency band, and when a first connection request sent by the target smart speaker according to the first broadcast signal is received, parse the first connection request, obtain the first connection parameter of the target smart speaker, and connect the target smart speaker according to the first connection parameter. By setting the binding state and broadcast signal mechanism between the smart microphone and the smart speaker, the embodiments of the present application can ensure that each speaker only establishes a stable and unique connection with the bound microphone. It can effectively solve the mixed connection problem in the scenario where multiple devices coexist, avoid confusion and interference of audio signals, and thus improve the stability and quality of audio transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0029] Figure 1 This is a schematic diagram of the implementation flow of the intelligent connection method for audio devices applied to smart microphones provided in an embodiment of the present application;

[0030] Figure 2 This is a schematic diagram of the structure of the smart speaker system provided in an embodiment of the present application;

[0031] Figure 3 This is a schematic diagram of the implementation process of the intelligent connection method for audio devices applied to smart speakers provided in an embodiment of the present application;

[0032] Figure 4 This is a schematic diagram of the implementation flow of the intelligent connection method for audio devices applied to the intelligent speaker system provided in an embodiment of the present application;

[0033] Figure 5 This is a schematic diagram of a smart microphone provided in an embodiment of the present application;

[0034] Figure 6 This is a schematic diagram of the smart speaker provided in an embodiment of the present application. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of this application more clear, the application is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without making any creative work are protected by this application.

[0036] It should be noted that the terms "include", "comprising" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, terminal, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices. In the claims, specification and drawings of this application, relational terms such as "first" and "second" are merely used to distinguish one entity / operation / object from another entity / operation / object, and do not necessarily require or imply any such real-time relationship or order between these entities / operations / objects.

[0037] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0038] In the current field of audio device connectivity, wireless communication between microphones and speakers primarily relies on Bluetooth technology. Due to its convenience and wide compatibility, Bluetooth technology has been widely used in scenarios such as smart audio systems, conference systems, and home entertainment systems. However, with the increase in the number of smart devices and the increasing complexity of usage scenarios, especially in environments where multiple devices coexist, traditional Bluetooth connection methods are prone to device confusion, where a speaker mistakenly connects to an unpaired microphone, or a microphone is recognized and attempted to connect by multiple speakers at the same time. These confusion issues not only affect the stability and quality of audio transmission, but can also cause confusion and interference in the audio signal, severely impacting the user experience.

[0039] In view of this, the embodiments of the present application set up a binding status and broadcast signal mechanism between the smart microphone and the smart speaker to ensure that each speaker establishes a stable and unique connection only with the bound microphone. This can effectively solve the mixed connection problem in scenarios where multiple devices coexist, avoid audio signal confusion and interference, and thus improve the stability and quality of audio transmission.

[0040] Figure 1 The following is a schematic diagram showing the implementation process of a smart connection method for audio devices provided by an embodiment of the present application. The method can be applied to Figure 2 The smart microphone in the smart speaker system shown, the smart speaker system can also include a smart speaker.

[0041] Specifically, the above-mentioned smart connection method for audio devices may include the following steps S101 to S104.

[0042] Step S101: Detect the first binding state of itself.

[0043] The first binding state indicates whether the smart microphone is bound to a target smart speaker. The target smart speaker is the smart speaker device that the smart microphone wants to establish a connection with. Generally speaking, the target smart speaker is the smart speaker that is bound to the smart microphone. In other words, the smart speaker that is bound to the smart microphone is the target smart speaker of the smart microphone.

[0044] In an embodiment of the present application, the smart microphone can check the binding information stored internally when it is started or enters the connection mode, and determine whether a binding relationship has been established with the target smart speaker based on the binding information, thereby determining its own binding status.

[0045] Step S102: When the first binding state is the bound state, a first broadcast signal is sent in a preset frequency band.

[0046] In an embodiment of the present application, when it is detected that its first binding state is the bound state, that is, after the smart microphone determines that it has been bound to the target smart speaker, it can use its built-in wireless communication module to send a broadcast signal containing the identity information of the smart microphone (such as device ID, etc.) within a preset frequency band.

[0047] By detecting its own binding status, the implementation method of the present application can enable the smart microphone to send a broadcast signal only when a binding relationship has been established with the target smart speaker, thereby avoiding unnecessary interference and confusion.

[0048] Step S103: In response to the first connection request sent by the target smart speaker, parse the first connection request to obtain the first connection parameter of the target smart speaker.

[0049] The first connection request is generated by the target smart speaker according to the first broadcast signal. The first connection parameter is a specific parameter required to establish a connection with the target smart speaker, such as a MAC address, a communication frequency, an encryption key, etc.

[0050] In an embodiment of the present application, all smart speakers near the smart microphone can search for corresponding broadcast signals within a preset frequency band. When the smart microphone searches for the first broadcast signal, the smart microphone can parse the searched first broadcast signal to obtain the identity information corresponding to the smart microphone, and determine whether the identity information matches the microphone information of the corresponding target smart microphone. If a smart speaker detects that the identity information matches the microphone information of the corresponding target smart microphone, then the smart speaker is the target smart speaker. At this time, the target smart speaker can generate a first connection request based on its own identity information and connection parameters, and broadcast the first connection request within the preset frequency band.

[0051] The smart microphone can search for connection requests within a preset frequency band. When the smart microphone searches for the first connection request, the smart microphone can parse the first connection request to obtain the first connection parameter of the target smart speaker.

[0052] Step S104: Connect to the target smart speaker according to the first connection parameter.

[0053] In an embodiment of the present application, upon receiving a connection request from a smart speaker, the smart microphone may display relevant information about the corresponding smart speaker on an interactive interface for the user to understand. If the user agrees to the connection, after obtaining first connection parameters, the smart microphone may use its built-in wireless communication module to establish a connection with the target smart speaker based on these parameters. Specifically, this may include steps such as setting the communication frequency and encrypting the communication, thereby achieving stable, high-quality audio transmission between the smart microphone and the target smart speaker.

[0054] In some embodiments of the present application, after connecting to the target smart speaker according to the first connection parameter, the following steps are further included:

[0055] Send a first confirmation connection signal to the target smart speaker.

[0056] The first connection confirmation signal may be a data packet, which includes the identity information of the smart microphone and a status code indicating a successful connection.

[0057] In an embodiment of the present application, after the smart microphone is unidirectionally connected to the target smart speaker, the smart microphone may continue to send a first confirmation connection signal to the target smart speaker. When the target smart speaker receives the first confirmation connection signal, it can determine that the connection has been successfully established, and thus adjust its working state accordingly (for example, start receiving and playing audio signals from the smart microphone). If the target smart speaker does not receive the confirmation connection signal within a certain period of time, it may consider the connection failed and attempt to reconnect or automatically shut down.

[0058] After the smart microphone is connected to the target smart speaker, the smart microphone sends a first confirmation connection signal to the target smart speaker, which can ensure that both parties have successfully established a connection and can reduce potential problems caused by unconfirmed connection.

[0059] The beneficial effects of the embodiments of the present application compared to the prior art are as follows: the embodiments of the present application detect the first binding state of the microphone, and when the first binding state is the bound state, send a first broadcast signal within a preset frequency band, and when a first connection request sent by the target smart speaker according to the first broadcast signal is received, parse the first connection request, obtain the first connection parameter of the target smart speaker, and connect the target smart speaker according to the first connection parameter. By setting the binding state and broadcast signal mechanism between the smart microphone and the smart speaker, the embodiments of the present application can ensure that each speaker only establishes a stable and unique connection with the bound microphone. It can effectively solve the mixed connection problem in the scenario where multiple devices coexist, avoid confusion and interference of audio signals, and thus improve the stability and quality of audio transmission.

[0060] First, the embodiment of the present application introduces a binding mechanism to ensure that a unique correspondence is established between the smart microphone and a specific target smart speaker. Only when the smart microphone confirms that it has been bound to the target smart speaker will it perform subsequent broadcast and connection operations. After confirming the binding status, the smart microphone will send a directional broadcast signal within the preset frequency band. This signal contains the unique identification information of the smart microphone, so that only the target smart speaker that knows this information can recognize and respond. After receiving the broadcast signal from the smart microphone, the target smart speaker will generate a connection request and send it to the smart microphone. After receiving this request, the smart microphone will parse the parameters required for the connection, such as MAC address, communication frequency, encryption key, etc. Finally, the smart microphone establishes an accurate connection with the target smart speaker based on the parsed connection parameters. This connection process is based on the parameters jointly confirmed by both parties, so it can avoid the device mixing problem that may occur in the traditional Bluetooth connection method.

[0061] In summary, the inventive concept of the embodiment of the present application is: by introducing binding mechanism, directional broadcast signal, connection request and parameter parsing, and precise connection steps, it effectively solves the device mixing problem that occurs during the wireless communication connection process of smart audio devices, improves the stability and quality of audio transmission, and enhances the user experience.

[0062] In some embodiments of the present application, after detecting the first binding state of itself, the method may further include steps S701 to S704.

[0063] Step S701: When the first binding state is an unbound state, a second broadcast signal is sent in a preset frequency band.

[0064] In an embodiment of the present application, if the first binding state is an unbound state, that is, the smart microphone has not yet been bound to any smart speaker, the smart microphone can automatically generate a second broadcast signal based on its own identity information and corresponding connection parameters, and use its built-in wireless communication module to send the second broadcast signal within a preset frequency band to find a bindable smart speaker, so that the surrounding smart speakers can recognize and respond to the binding request of the smart microphone.

[0065] Step S702: In response to the first binding request sent by the smart speaker, parse the first binding request to obtain the first identity information and second connection parameters of the smart speaker.

[0066] Among them, the first binding request is generated by the smart speaker based on the second broadcast signal.

[0067] It should be understood that in the implementation mode of the present application, after the smart microphone sends the second broadcast signal, the user can initiate binding on the smart speaker end. Specifically, the smart speaker selected by the user receives the second broadcast signal sent by the smart microphone, parses the second broadcast signal, and obtains the identity information and connection parameters corresponding to the smart microphone. At the same time, the smart speaker responds to the user's initiation of binding operation, generates a first binding request based on its own identity information and connection parameters, and broadcasts the first binding request within the preset frequency band.

[0068] After receiving the first binding request, the smart microphone can parse the first binding request and extract the first identity information (such as device ID, etc.) and second connection parameters (such as MAC address, communication frequency, encryption key, etc.) of the smart speaker to perform subsequent binding and connection operations.

[0069] Step S703: In response to the user's confirmation binding operation, a first confirmation binding signal is sent to the smart speaker, and a binding relationship is established with the smart speaker according to the first identity information, and the smart speaker is determined to be the target smart speaker.

[0070] In an embodiment of the present application, after receiving the first binding request sent by the smart speaker, the smart microphone can prompt the user whether to perform the binding operation, for example, by voice prompting or by displaying relevant text prompts on the display screen of the smart microphone. After the user performs the confirmation binding operation (which may be implemented through the physical button, touch screen interface or supporting application of the smart microphone), the smart microphone can record the identity information of the smart speaker in its internal storage, thereby establishing a binding relationship and determining the smart speaker as the target smart speaker. At the same time, the smart microphone can use its built-in wireless communication module to send a confirmation binding signal to the smart speaker containing the identity information of both the smart microphone and the smart speaker.

[0071] It is understandable that ensuring that the binding operation between the smart microphone and the smart speaker reflects the user's intention can prevent unauthorized binding. At the same time, by recording identity information, it can provide a basis for subsequent connection operations.

[0072] Step S704: Connect to the target smart speaker according to the second connection parameter.

[0073] In an embodiment of the present application, after establishing a binding relationship with the target smart speaker, the smart microphone can connect to the target smart speaker according to the second connection parameter.

[0074] The embodiment of the present application introduces a binding mechanism, which can find and bind the target smart speaker by sending a second broadcast signal when the smart microphone is not bound to any smart speaker, thereby increasing the flexibility of user operation. In addition, through the user's confirmation of the binding operation and the exchange and storage of the identity information of both parties, the security of the connection between the smart microphone and the smart speaker is enhanced, and unauthorized binding and connection are avoided. In addition, after the binding is successful, the second connection parameters obtained during the binding process are directly used for connection, which avoids the problems of parameter configuration errors and connection failures that may occur in the traditional connection process and optimizes the connection process. By simplifying the connection steps, improving the connection success rate and stability, and enhancing the security of the connection, the user experience is improved.

[0075] In some embodiments of the present application, the above method may further include steps S801 to S803.

[0076] Step S801: In response to the user's unbinding operation, detect the connection status with the target smart speaker.

[0077] The connection status is used to indicate whether the smart microphone is connected to the target smart speaker.

[0078] In the embodiments of the present application, after a smart microphone has established a binding relationship with a smart speaker (i.e., the target smart speaker of the smart microphone), if the user wishes to unbind the smart microphone, the user can initiate the unbinding process on the smart microphone, specifically by clicking a related physical button or performing other corresponding operations. At this point, the smart microphone can respond to the user's unbinding operation and detect the connection status with the target smart speaker, specifically by sending a query request or checking a local state variable.

[0079] Step S802: When the connection status is connected, clear the binding information with the target smart speaker and send a first unbinding request to the target smart speaker.

[0080] In the embodiments of the present application, if the connection status is connected, that is, the smart microphone is still connected to the target smart speaker, the smart microphone can clear the binding information related to the target smart speaker in the local storage. In addition, the smart microphone can also send an unbinding instruction to the target smart speaker via the network protocol to request the target smart speaker to also clear the binding information, ensuring that both parties no longer store the connection information and completely disconnect.

[0081] Step S803: When the connection status is unconnected, clear the binding information with the target smart speaker.

[0082] In an embodiment of the present application, if the connection state is disconnected, that is, the smart microphone is disconnected from the target smart speaker, the smart microphone can simply clear the binding information related to the target smart speaker in the local storage without requiring network operation. Even if a physical connection is not established, it ensures that no invalid connection information is retained locally.

[0083] In some specific implementations of the present application, the above method may further include steps S1101 to S1104:

[0084] Step S1101: After clearing the binding information, add the target smart speaker to the blacklist and set the blacklist validity period.

[0085] In the implementation of this application, the smart microphone can add the identification information of the target smart speaker to the local or server-side blacklist to prevent the user or system from re-establishing the binding relationship in the event of future misoperation or automatic reconnection. A timestamp or validity period field is also added to the blacklist record to set the blacklist validity period, for example, to 1 minute, to avoid long-term invalid blacklists occupying resources. It is also possible to reconnect to the target smart speaker after the validity period has expired.

[0086] Step S1102: When the first connection request is found within the validity period, the first connection request is parsed to obtain the identity information of the target smart speaker.

[0087] In an embodiment of the present application, after the smart microphone is unbound from the target smart speaker, it can still receive a connection request from the smart speaker. If the smart microphone receives a connection request from the smart speaker, it can parse the received first connection request to obtain the identity information of the smart speaker.

[0088] Step S1103, determine whether the identity information matches the speaker information of the target smart speaker in the blacklist.

[0089] In an embodiment of the present application, the smart microphone can determine whether the identity information corresponding to the received first connection request matches the speaker information of the target smart speaker in the blacklist.

[0090] Step S1104: If a match is found, the target smart speaker is not connected, and the corresponding connection information of the target smart speaker is not displayed on the interactive interface.

[0091] In an embodiment of the present application, if the identity information corresponding to the first connection request matches the speaker information of the target smart speaker in the blacklist, the smart microphone may not connect to the target smart speaker, and may not display the corresponding connection information of the target smart speaker on the interactive interface, so as not to interfere with the user's connection to other smart speakers.

[0092] The implementation method of the present application can allow users to unbind devices as needed and optionally set the blacklist validity period, preventing unauthorized access or misoperation by clearing binding information and adding to the blacklist.

[0093] In addition to the above-mentioned smart connection methods for audio devices applied to smart microphones, such as Figure 3 As shown, the present application also provides another intelligent connection method for audio devices, the intelligent connection method for audio devices is applied to Figure 2 The smart speaker in the smart speaker system shown.

[0094] Specifically, the above-mentioned smart connection method for audio devices may include the following steps S301 to S305.

[0095] Step S301: Detect the second binding state of the device.

[0096] The second binding state indicates whether the smart speaker is bound to a target smart microphone. The target smart microphone is the smart microphone device that the smart speaker wants to establish a connection with. Generally speaking, the target smart microphone is the smart microphone bound to the smart speaker. In other words, the smart microphone that is bound to the smart speaker is the target smart microphone of the smart speaker.

[0097] In an embodiment of the present application, the smart speaker can determine its own binding status by querying its internal storage or status register to determine whether there is a binding record with the target smart microphone.

[0098] Step S302: When the second binding state is the bound state, searching for a third broadcast signal in a preset frequency band, parsing the searched third broadcast signal, and obtaining corresponding second identity information and third connection parameters.

[0099] In an embodiment of the present application, when the smart speaker detects that its second binding state is already bound, that is, after determining that it has been bound to the target smart microphone, the smart speaker can use its built-in wireless communication module (such as Wi-Fi, Bluetooth, etc.) to scan and receive the third broadcast signal within a preset frequency band. After searching for the third broadcast signal, the smart speaker can decode the third broadcast signal and extract the second identity information and third connection parameters of the corresponding smart microphone.

[0100] Step S303: Determine whether the second identity information matches the microphone information of the target smart microphone.

[0101] In the embodiments of the present application, the smart speaker compares the parsed second identity information with the internally stored identity information of the target smart microphone to confirm whether the sender of the broadcast signal is the target smart microphone to be connected, thereby preventing incorrect connection. It is understood that when the smart speaker is bound to the target smart microphone, the identity information of the target smart microphone is stored internally in the smart speaker.

[0102] Step S304: When the second identity information matches the microphone information of the target smart microphone, a second connection request is generated and sent to the target smart microphone.

[0103] In an embodiment of the present application, when the identity information matches, the smart speaker can generate a second connection request based on its own identity information and connection parameters, and send the second connection request to the target smart microphone through the wireless communication module to establish a communication link between the two.

[0104] Step S305: Connect to the target smart microphone according to the third connection parameter.

[0105] In an embodiment of the present application, the smart speaker can use the third connection parameter to establish a stable communication connection with the target smart microphone.

[0106] By first detecting the binding status and then searching and connecting, this embodiment of the application avoids unnecessary search and connection attempts, improving connection efficiency and success rate. Furthermore, through identity information matching and verification, only target smart microphones that have established a binding relationship with the smart speaker can be connected, enhancing system security and effectively preventing mixed device connections.

[0107] In some implementations of the present application, after the above-mentioned detection of the second binding state of itself, steps S901 to S904 may be further included.

[0108] Step S901: When the second binding state is the unbinding state, searching for a fourth broadcast signal in a preset frequency band, and parsing the searched fourth broadcast signal to obtain corresponding parsing information.

[0109] The parsed information includes the third identity information and the fourth connection parameter.

[0110] In an embodiment of the present application, if the second binding state is an unbound state, that is, the smart speaker has not been bound to any smart microphone, the smart speaker can automatically search for the fourth broadcast signal within the preset frequency band. If the fourth broadcast signal is searched, the searched fourth broadcast signal can be analyzed to obtain the third identity information and fourth connection parameters of the smart microphone corresponding to the fourth broadcast signal.

[0111] Step S902: In response to the user's initiating binding operation, a second binding request is generated, and the second binding request is sent to the smart microphone corresponding to the fourth broadcast signal.

[0112] In an embodiment of the present application, a user can initiate binding on the smart speaker, and the smart speaker can respond to the user's binding operation by generating a second binding request based on its own identity information and connection parameters, and the smart microphone corresponding to the fourth broadcast signal sends the second binding request to request to establish a binding relationship with the smart microphone.

[0113] Step S903: In response to the second binding confirmation signal sent by the smart microphone, a binding relationship is established with the smart microphone according to the third identity information, and the smart microphone is determined to be the target smart microphone.

[0114] In an embodiment of the present application, after the user performs a binding confirmation operation (which may be implemented through the physical button, touch screen interface, or supporting application of the smart microphone), the smart microphone can use its built-in wireless communication module to send a second binding confirmation signal containing the identity information of both the smart microphone and the smart speaker to the smart speaker. After receiving the second binding confirmation signal, the smart speaker can record the identity information of the smart microphone in its internal storage, thereby establishing a binding relationship and determining the smart microphone as the target smart microphone.

[0115] Step S904: Connect to the target smart microphone according to the fourth connection parameter.

[0116] In an embodiment of the present application, after establishing a binding relationship with the target smart speaker, the smart speaker can connect to the target smart microphone according to the fourth connection parameter.

[0117] The embodiment of the present application introduces a binding mechanism, which can find and bind the target smart microphone by sending a second broadcast signal when the smart speaker is not bound to any smart microphone, thereby increasing the flexibility of user operation. In addition, through the user's confirmation of the binding operation and the exchange and storage of the identity information of both parties, the security of the connection between the smart speaker and the smart microphone is enhanced, and unauthorized binding and connection are avoided. In addition, after the binding is successful, the fourth connection parameter obtained during the binding process is directly used for connection, which avoids the problems of parameter configuration errors and connection failures that may occur in the traditional connection process and optimizes the connection process. By simplifying the connection steps, improving the connection success rate and stability, and enhancing the security of the connection, the user experience is improved.

[0118] In some embodiments of the present application, the above method may further include steps S1001 to S1003.

[0119] Step S1001: In response to the user's unbinding operation, detect the connection status with the target smart microphone.

[0120] The connection status is used to indicate whether the smart speaker has established a connection with the target smart microphone.

[0121] In the embodiments of the present application, after a smart speaker establishes a binding relationship with a smart microphone (i.e., the target smart microphone of the smart speaker), if the user wishes to unbind the smart speaker, the user can initiate the unbinding process on the smart speaker by clicking a related physical button or performing other corresponding operations. The smart speaker can then respond to the user's unbinding operation and detect the connection status with the target smart microphone by sending a query request or checking a local state variable.

[0122] Step S1002: When the connection state is the connected state, clear the binding information between the target smart microphone and the target smart microphone and send a second unbinding request to the target smart microphone.

[0123] In the embodiments of the present application, if the connection status is connected, that is, the smart speaker is still connected to the target smart microphone, the smart speaker can clear the binding information related to the target smart microphone in the local storage. In addition, the smart speaker can also send an unbinding instruction to the target smart microphone via the network protocol to request the target smart microphone to also clear the binding information, ensuring that both parties no longer store the connection information and completely disconnect.

[0124] Step S1003: When the connection state is disconnected, clear the binding information between the target smart microphone and the target smart microphone.

[0125] In an embodiment of the present application, if the connection state is disconnected, that is, the smart speaker is disconnected from the target smart microphone, the smart speaker can simply clear the binding information related to the target smart microphone in the local storage without requiring network operation. Even if a physical connection is not established, it ensures that no invalid connection information is retained locally.

[0126] In some specific implementations of the present application, the above method may further include steps S1201 to S1204:

[0127] Step S1201: After clearing the binding information, add the target smart microphone to the blacklist and set the validity period of the blacklist.

[0128] In the implementation of the present application, the smart speaker can add the identification information of the target smart microphone to the local or server-side blacklist to prevent the user or system from re-establishing the binding relationship in the event of future misoperation or automatic reconnection. A timestamp or validity period field is also added to the blacklist record to set the blacklist validity period, for example, to 1 minute, to avoid long-term invalid blacklists occupying resources. It is also possible to reconnect to the target smart speaker after the validity period has expired.

[0129] Step S1202: When the third broadcast signal is found within the validity period, the third broadcast signal is parsed to obtain the second identity information.

[0130] In an embodiment of the present application, after the smart speaker is unbound from the target smart microphone, it can still receive the broadcast signal of the smart microphone. If the smart speaker receives the broadcast signal of the smart microphone, it can parse the searched third broadcast signal to obtain the second identity information of the smart microphone.

[0131] Step S1203: Determine whether the second identity information matches the microphone information of the target smart microphone in the blacklist.

[0132] In an embodiment of the present application, the smart speaker can determine whether the identity information corresponding to the received third broadcast signal matches the microphone information of the target smart microphone in the blacklist.

[0133] Step S1204: If a match is found, the target smart microphone is not connected, and the corresponding connection information of the target smart microphone is not displayed on the interactive interface.

[0134] In an embodiment of the present application, if the identity information corresponding to the third broadcast signal matches the microphone information of the target microphone in the blacklist, the smart speaker may not connect to the target smart microphone and may not display the corresponding connection information of the target smart microphone on the interactive interface to avoid interfering with the user's connection to other smart microphones.

[0135] The implementation method of the present application can allow users to unbind devices as needed and optionally set the blacklist validity period, preventing unauthorized access or misoperation by clearing binding information and adding to the blacklist.

[0136] In addition to the above-mentioned smart connection methods for audio devices such as smart microphones and smart speakers, Figure 4 As shown, the present application also provides another intelligent connection method for audio devices, the intelligent connection method for audio devices is applied to Figure 2 The smart speaker system shown includes a smart microphone and a smart speaker.

[0137] Specifically, the above-mentioned smart connection method for audio devices may include the following steps S401 to S408.

[0138] Step S401: The smart microphone detects its own third binding state.

[0139] The third binding state indicates whether the smart microphone is bound to a target smart speaker. The target smart speaker is the smart speaker device that the smart microphone wants to establish a connection with. Generally speaking, the target smart speaker is the smart speaker that is bound to the smart microphone. In other words, the smart speaker that is bound to the smart microphone is the target smart speaker of the smart microphone.

[0140] In an embodiment of the present application, the smart microphone can check the binding information stored internally when it is started or enters the connection mode, and determine whether a binding relationship has been established with the target smart speaker based on the binding information, thereby determining its own binding status.

[0141] Step S402: When the third binding state is the bound state, the smart microphone sends a fifth broadcast signal within a preset frequency band.

[0142] In an embodiment of the present application, when it is detected that its third binding state is the bound state, that is, after the smart microphone determines that it has been bound to the target smart speaker, it can use its built-in wireless communication module to send a broadcast signal containing the identity information of the smart microphone (such as device ID, etc.) within a preset frequency band.

[0143] By detecting its own binding status, the implementation method of the present application can enable the smart microphone to send a broadcast signal only when a binding relationship has been established with the target smart speaker, thereby avoiding unnecessary interference and confusion.

[0144] Step S403: The smart speaker detects its own fourth binding state.

[0145] The fourth binding state indicates whether the smart speaker is bound to a target smart microphone. The target smart microphone is the smart microphone device that the smart speaker wants to establish a connection with. Generally speaking, the target smart microphone is the smart microphone bound to the smart speaker. In other words, the smart microphone that is bound to the smart speaker is the target smart microphone of the smart speaker.

[0146] In an embodiment of the present application, the smart speaker can determine its own binding status by querying its internal storage or status register to determine whether there is a binding record with the target smart microphone.

[0147] Step S404: When the fourth binding state is the bound state, the smart speaker searches for a fifth broadcast signal within a preset frequency band, and parses the searched fifth broadcast signal to obtain corresponding fourth identity information and fifth connection parameters.

[0148] In an embodiment of the present application, when the smart speaker detects that its fourth binding state is already bound, that is, after determining that it has been bound to the target smart microphone, the smart speaker can use its built-in wireless communication module (such as Wi-Fi, Bluetooth, etc.) to scan and receive the fifth broadcast signal within a preset frequency band. After searching for the fifth broadcast signal, the smart speaker can decode the fifth broadcast signal and extract the fourth identity information and fifth connection parameters of the corresponding smart microphone.

[0149] In step S405, the smart speaker determines whether the fourth identity information matches the microphone information of the target smart microphone.

[0150] In the embodiments of the present application, the smart speaker compares the parsed fourth identity information with the internally stored identity information of the target smart microphone to confirm whether the sender of the broadcast signal is the target smart microphone to be connected, thereby preventing incorrect connection. It is understood that when the smart speaker is bound to the target smart microphone, the identity information of the target smart microphone is stored internally in the smart speaker.

[0151] Step S406: When the fourth identity information matches the microphone information of the target smart microphone, the smart speaker connects to the target smart microphone according to the fifth connection parameter, generates a third connection request, and sends the third connection request to the target smart microphone.

[0152] In an embodiment of the present application, when the identity information matches, the smart speaker can use the third connection parameters to establish a stable communication connection with the target smart microphone. In addition, the smart speaker can generate a second connection request based on its own identity information and connection parameters, and send the second connection request to the target smart microphone via the wireless communication module to establish a communication link between the two.

[0153] Step S407: When the smart microphone receives the third connection request, the smart microphone parses the third connection request and obtains the sixth connection parameter of the target smart speaker.

[0154] In an embodiment of the present application, the smart microphone can search for connection requests within a preset frequency band. When the smart microphone searches for the third connection request, the smart microphone can parse the third connection request to obtain the sixth connection parameter of the target smart speaker.

[0155] Step S408: The smart microphone connects to the target smart speaker according to the sixth connection parameter.

[0156] In an embodiment of the present application, after obtaining the sixth connection parameters, the smart microphone can use its built-in wireless communication module to establish a connection with the target smart speaker based on these parameters. Specifically, this may include setting the communication frequency and encrypting the communication, thereby achieving stable, high-quality audio transmission between the smart microphone and the target smart speaker.

[0157] In some specific implementations of the present application, the preset frequency band is the 2.4G frequency band.

[0158] In the embodiment of the present application, the smart speaker and the smart microphone can be connected using a 2.4G private protocol. By abandoning the traditional Bluetooth connection, the smart speaker and / or smart microphone can be prevented from being mixed with other Bluetooth devices.

[0159] like Figure 5The figure shows a schematic diagram of a smart microphone provided by an embodiment of the present application. The smart microphone 5 may include: a processor 501, a memory 502, and a computer program 503 stored in the memory 502 and executable on the processor 501, such as a smart connection program for an audio device. When the processor 501 executes the computer program 503, the steps in the above-mentioned smart connection method embodiments of each audio device are implemented, such as Figure 1 Steps S101 to S104 are shown.

[0160] The computer program can be divided into one or more modules / units, one or more of which are stored in the memory 502 and executed by the processor 501 to complete the present application. One or more modules / units can be a series of computer program instruction segments that can perform specific functions, and the instruction segments are used to describe the execution process of the computer program in the smart microphone.

[0161] The smart microphone may include, but is not limited to, a processor 501 and a memory 502. Those skilled in the art will appreciate that Figure 5 This is only an example of a smart microphone and does not constitute a limitation of the smart microphone. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, a smart microphone may also include input and output devices, network access devices, buses, etc.

[0162] The processor 501 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor.

[0163] The memory 502 can be an internal storage unit of the smart microphone, such as a hard drive or memory of the smart microphone. The memory 502 can also be an external storage device of the smart microphone, such as a plug-in hard drive equipped on the smart microphone, a smart media card (SMC), a secure digital (SD) card, a flash memory card, etc. Furthermore, the memory 502 can also include both the internal storage unit of the smart microphone and an external storage device. The memory 502 is used to store computer programs and other programs and data required by the smart microphone. The memory 502 can also be used to temporarily store data that has been output or is about to be output.

[0164] It should be noted that, for the convenience and brevity of description, the structure of the above-mentioned smart microphone can also refer to the specific description of the structure in the method embodiment, which will not be repeated here.

[0165] like Figure 6 6 is a schematic diagram of a smart speaker provided in an embodiment of the present application. The smart speaker 6 may include: a processor 601, a memory 602, and a computer program 603 stored in the memory 602 and executable on the processor 601, such as a smart connection program for an audio device. When the processor 601 executes the computer program 603, the steps in the above-mentioned smart connection method embodiments of each audio device are implemented, such as Figure 3 Steps S301 to S305 are shown.

[0166] The computer program can be divided into one or more modules / units, one or more of which are stored in the memory 602 and executed by the processor 601 to complete the present application. One or more modules / units can be a series of computer program instruction segments that can perform specific functions. The instruction segments are used to describe the execution process of the computer program in the smart speaker.

[0167] The smart speaker may include, but is not limited to, a processor 601 and a memory 602. Those skilled in the art will appreciate that Figure 6 This is only an example of a smart speaker and does not constitute a limitation of the smart speaker. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the smart speaker may also include input and output devices, network access devices, buses, etc.

[0168] The processor 601 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor.

[0169] The memory 602 may be an internal storage unit of the smart speaker, such as a hard drive or memory of the smart speaker. The memory 602 may also be an external storage device of the smart speaker, such as a plug-in hard drive, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc. equipped on the smart speaker. Furthermore, the memory 602 may also include both an internal storage unit of the smart speaker and an external storage device. The memory 602 is used to store computer programs and other programs and data required by the smart speaker. The memory 602 may also be used to temporarily store data that has been output or is to be output.

[0170] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0171] An embodiment of the present application further provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the steps in the above-mentioned smart connection method for audio devices can be implemented.

[0172] An embodiment of the present application provides a computer program product. When the computer program product is run on a mobile terminal, the mobile terminal can implement the steps in the above-mentioned smart connection method for audio devices when executing the computer program product.

[0173] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0174] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0175] In the embodiments provided in this application, it should be understood that the disclosed devices / terminal devices and methods can be implemented in other ways. For example, the device / terminal device embodiments described above are merely illustrative. For example, the division of modules or units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0176] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0177] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0178] If the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the process in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and when the computer program is executed by the processor, it can implement the steps of the above-mentioned various method embodiments. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium, etc. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electric carrier signals and telecommunication signals.

[0179] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A smart connection method for audio equipment, characterized in that: The intelligent connection method for audio equipment is applied to an intelligent microphone, and the method comprises: Detecting a first binding state of the smart microphone, where the first binding state is used to indicate whether the smart microphone is bound to a target smart speaker; When the first binding state is the bound state, sending a first broadcast signal within a preset frequency band; In response to a first connection request sent by the target smart speaker, parsing the first connection request to obtain a first connection parameter of the target smart speaker, wherein the first connection request is generated by the target smart speaker according to the first broadcast signal; Connect to the target smart speaker according to the first connection parameters.

2. The intelligent connection method for audio devices according to claim 1, wherein: After detecting the first binding state of the self, the method further includes: When the first binding state is an unbound state, sending a second broadcast signal within the preset frequency band; In response to a first binding request sent by the smart speaker, parsing the first binding request to obtain first identity information and second connection parameters of the smart speaker, wherein the first binding request is generated by the smart speaker based on the second broadcast signal; In response to the user's confirmation binding operation, sending a first binding confirmation signal to the smart speaker, establishing a binding relationship with the smart speaker according to the first identity information, and determining the smart speaker as the target smart speaker; Connect to the target smart speaker according to the second connection parameter.

3. The intelligent connection method for audio devices according to claim 1, wherein: The method further comprises: In response to the user's unbinding operation, detecting a connection status with the target smart speaker, where the connection status is used to indicate whether the smart microphone is connected to the target smart speaker; When the connection state is the connected state, clear the binding information between the target smart speaker and the target smart speaker and send a first unbinding request to the target smart speaker; When the connection state is an unconnected state, the binding information between the target smart speaker and the target smart speaker is cleared.

4. The intelligent connection method for audio equipment according to claim 3, wherein: The method further comprises: After clearing the binding information, add the target smart speaker to the blacklist and set the validity period of the blacklist; When the first connection request is found within the validity period, the first connection request is parsed to obtain the identity information of the target smart speaker; Determine whether the identity information matches the speaker information of the target smart speaker in the blacklist; If there is a match, the target smart speaker will not be connected, and the corresponding connection information of the target smart speaker will not be displayed on the interactive interface.

5. A smart connection method for audio equipment, characterized in that: The intelligent connection method of the audio device is applied to a smart speaker, and the method includes: Detecting a second binding state of the smart speaker, where the second binding state is used to indicate whether the smart speaker is bound to the target smart microphone; When the second binding state is the bound state, searching for a third broadcast signal within a preset frequency band, and parsing the searched third broadcast signal to obtain corresponding second identity information and third connection parameters; Determining whether the second identity information matches the microphone information of the target smart microphone; When the second identity information matches the microphone information of the target smart microphone, generating a second connection request, and sending the second connection request to the target smart microphone; The target smart microphone is connected according to the third connection parameter.

6. The intelligent connection method for audio equipment according to claim 5, characterized in that: After detecting the second binding state of the self, the method further includes: When the second binding state is an unbound state, searching for a fourth broadcast signal within a preset frequency band, and parsing the searched fourth broadcast signal to obtain corresponding parsing information, the parsing information including the third identity information and the fourth connection parameter; In response to a user's initiating binding operation, generating a second binding request, and sending the second binding request to the smart microphone corresponding to the fourth broadcast signal; In response to a second binding determination signal sent by the smart microphone, establishing a binding relationship with the smart microphone according to the third identity information, and determining the smart microphone as the target smart microphone; The target smart microphone is connected according to the fourth connection parameter.

7. The intelligent connection method for audio equipment according to claim 5, characterized in that: The method further comprises: In response to the user's unbinding operation, detecting the connection status with the target smart microphone, wherein the connection status is used to indicate whether the smart speaker is connected to the target smart microphone; When the connection state is the connected state, clear the binding information between the target smart microphone and the target smart microphone and send a second unbinding request to the target smart microphone; When the connection state is an unconnected state, the binding information between the target smart microphone and the target smart microphone is cleared.

8. The intelligent connection method for audio devices according to claim 7, wherein: The method further comprises: After clearing the binding information, the target smart microphone is added to a blacklist, and the validity period of the blacklist is set; When the third broadcast signal is found within the validity period, the third broadcast signal is parsed to obtain the second identity information; Determining whether the second identity information matches the microphone information of the target smart microphone in the blacklist; If they match, the target smart microphone will not be connected, and the corresponding connection information of the target smart microphone will not be displayed on the interactive interface.

9. A smart connection method for audio equipment, characterized in that: The intelligent connection method of the audio device is applied to an intelligent speaker system, wherein the intelligent speaker system includes an intelligent microphone and an intelligent speaker, and the method includes: The smart microphone detects its third binding state, where the third binding state is used to indicate whether the smart microphone is bound to the target smart speaker; When the third binding state is the bound state, the smart microphone sends a fifth broadcast signal within a preset frequency band; The smart speaker detects its own fourth binding state, where the fourth binding state is used to indicate whether the smart speaker is bound to the target smart microphone; When the fourth binding state is the bound state, the smart speaker searches for a fifth broadcast signal within a preset frequency band, and parses the searched fifth broadcast signal to obtain corresponding fourth identity information and fifth connection parameters; The smart speaker determines whether the fourth identity information matches the microphone information of the target smart microphone; When the fourth identity information matches the microphone information of the target smart microphone, the smart speaker connects to the target smart microphone according to the fifth connection parameter, generates a third connection request, and sends the third connection request to the target smart microphone; When the smart microphone receives the third connection request, the smart microphone parses the third connection request to obtain a sixth connection parameter of the target smart speaker; The smart microphone connects to the target smart speaker according to the sixth connection parameter.

10. The intelligent connection method for audio equipment according to claim 9, characterized in that: The preset frequency band is the 2.4G frequency band.

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