CN105635903A - Wireless connection and control method and system for wireless speaker - Google Patents

Abstract

A wireless connection and control method and system for wireless sound box comprises a control application module installed in a mobile electronic device and a wireless sound box, therefore, after the user opens the control application module on the mobile electronic device, the user can input the control command on an operation interface, and then, the control application module will convert the transmission packet data represented by the control command into audio signal that is not easy to be heard by human ear to form an encrypted audio, and after a wireless sound box receives the played encrypted audio, the wireless sound box can convert the received audio signal of the encrypted audio into transmission packet data, therefore, the wireless sound box can execute the control instruction represented by the transmission packet data, so that the mobile electronic device can be in wireless pairing connection with the wireless sound box or the mobile electronic device can control the action of the wireless sound box.

Description

Wireless connection and control method and system for wireless speaker

technical field

The present invention relates to a wireless connection and control method and system for a wireless speaker, in particular to an audio signal that can be difficult for the human ear to hear, so that a mobile electronic device can be paired with a wireless speaker for wireless pairing or connection. The action of the wireless speaker is controlled by the mobile electronic device.

Background technique

The speaker device can provide playback equipment for people to listen to music. With the development of digital storage, people's wireless applications are also extended to speaker devices. Now the most common wireless speakers may have a built-in Bluetooth signal receiver, and then the built-in Bluetooth connection function of the mobile phone will be connected to the speaker. Wireless speakers for pairing and connection.

But generally it is very troublesome to pair and connect with wireless speakers. For Bluetooth connection, the most common way is to first adjust the wireless speakers to the pairing mode, and then put the wireless speakers Push a certain switch on a certain direction to the end for about a few seconds, and you will see that the Bluetooth indicator flashes quickly, and you will enter the pairing mode smoothly. If you pair with a mobile phone, you will see the wireless speaker on the mobile phone, click Then perform a pairing connection.

At present, although most wireless speakers use Bluetooth technology as the mainstay, the current Bluetooth transmission technology is mostly based on the SBC encoding of the A2DP stereo audio transmission protocol or the CSRapt-X high-fidelity audio compression technology to achieve the listening level of CD sound quality, but basically These technologies will compress the original audio files before streaming, which will inevitably cause some distortion. Therefore, with the improvement of audio formats and the need for listening to high-resolution music, Wi-Fi technology is relatively advantageous. However, the operation on the Wi-Fi connection is more complicated than the operation on the Bluetooth connection.

Generally, wireless speakers that can be connected via Wi-Fi will have a built-in wireless network base station in the wireless speaker. For operation, you must first connect the computer to the LAN port of the wireless speaker with a network cable, or use a wireless The network is connected to the base station named wireless speaker (but the premise is that the wireless network setting must be completed), and before use, it must be connected to the management interface of the wireless network base station of the wireless speaker to enter the wireless network Name, wireless key password, PPPOE network dial-up settings and other information can ensure the smooth operation of Wi-Fi mode; and in addition to the above-mentioned wireless speakers as wireless base stations, another usage mode is to use Both the mobile electronic device and the wireless speaker are connected to the home wireless network base station, but the wireless speaker must first know the name of the wireless network base station and the wireless key password to be connected through the wired or wireless complicated setting mode;

However, no matter how to connect the wireless speaker with Wi-Fi, it can be seen from the above description that there is a certain degree of difficulty in the operation. If the user does not have certain relevant knowledge and technology, it will be difficult to complete the connection of the wireless speaker. Wi-Fi is used for the connection operation, so how to make the user more convenient to operate the wireless pairing connection of the wireless speakers will be a big problem to be solved.

Therefore, if a convenient way can be provided so that the user can operate the mobile phone to output an audio signal, after the wireless speaker receives it, the wireless speaker can automatically decode it according to the received audio signal, and then it can be paired The required information, or the command to control the wireless speaker, should be an optimal solution.

Contents of the invention

The purpose of the present invention is to provide a wireless connection and control method and system for wireless speakers, which can use audio signals that are difficult for human ears to enable mobile electronic devices to perform wireless pairing and connection with wireless speakers or by mobile devices. The electronic device controls the action of the wireless speaker.

In order to achieve the above purpose, the present invention discloses a wireless connection and control method for a wireless speaker, which is characterized in that it includes:

After the user opens a control application module on a mobile electronic device, he inputs a control command on an operation interface;

The control application module can convert the transmission packet data represented by the control command into an audio signal to form an encrypted audio signal, wherein the frequency range of the converted audio signal is 10K-20KHz;

After a wireless speaker receives the encrypted audio played by the mobile electronic device, the wireless speaker can convert the audio signal of the received encrypted audio into transmission packet data;

Afterwards, the wireless speaker can execute the control command represented by the transmission packet data, so that the mobile electronic device can perform wireless pairing and connection with the wireless speaker or the mobile electronic device can control the action of the wireless speaker.

Among them, the transmission packet data represented by the control command further includes a fixed signal sequence code, and the wireless speaker stores the fixed signal sequence code, and the wireless speaker will first judge the converted transmission packet data first. Whether there is the fixed signal sequence code in the packet data, if it is determined that there is the fixed signal sequence code, the analysis of the transmitted packet data will continue.

Wherein, the transmission packet data represented by the control command further includes an error correction code, and the error correction code is used when the wireless speaker judges that the complete transmission packet data cannot be converted, and can be detected according to the error correction code and Correct the converted transport packet data.

Wherein, when the wireless speaker judges that the complete transmission packet data cannot be converted, it can perform string comparison on the transmission packet data to restore the transmission packet data to be transmitted by the mobile electronic device.

Wherein, after the control application module converts the transmission packet data represented by the control command into an audio signal, it can then mix a music signal with the converted audio signal to form an encrypted audio.

Also disclosed is a wireless connection and control system for wireless speakers, characterized in that it includes:

A control application module installed in a mobile electronic device with a speaker and a wireless connection module, and the control application module includes:

A control command input interface, providing an operation interface for allowing a user to input control commands;

A transmission packet data conversion module, connected to the control command input interface, used to convert the input control command into transmission packet data with several codes;

A storage module with a built-in comparison table of codes corresponding to audio signals;

An audio signal conversion module is connected with the transmission packet data conversion module and the storage module, and the control command conversion module can convert all the codes in the transmission packet data according to the comparison table built in the storage module Convert to an audio signal to form an encrypted audio, wherein the frequency range of the converted audio signal is 10K ~ 20KHz;

An audio signal playing module is connected with the audio signal conversion module, and the audio signal playing module can play the encrypted audio through the speaker of the mobile electronic device;

A wireless speaker, comprising:

An audio signal receiving module for receiving the encrypted audio;

A storage module, built-in a comparison table and a decoding table of codes corresponding to audio signals;

An audio signal decoding module, connected to the audio signal receiving module, is used to convert the received encrypted audio audio signal into transmission packet data with several codes according to the built-in comparison table of the storage module; as well as

A control instruction execution module is connected with the audio signal decoding module, and is used to analyze the transmission packet data converted by the audio signal decoding module, and execute the control instruction represented by the transmission packet data, so as to The mobile electronic device can perform wireless pairing and connection with the wireless speaker or the mobile electronic device controls the action of the wireless speaker.

Wherein, the transmission packet data further includes a fixed signal sequence code, and the storage module of the wireless speaker will store the fixed signal sequence code, and the audio signal decoding module will first convert the transmission packet data, Priority is given to judging whether there is the fixed signal sequence code in the transmission packet data, and only when the fixed signal sequence code is determined can the analysis of the transmission packet data be continued.

Wherein, the format of the transmission packet data at least includes a synchronization signal field, a channel code field, a packet type field and a data content field, and the transmission packet data conversion module can convert the user input The control command is input into different fields with different codes according to different fields to form the transmission packet data.

Wherein, the synchronization signal field contains a fixed signal sequence code, and the audio signal conversion module can first convert the code in the synchronization signal field into an audio signal, and set the converted audio signal in the playback sequence of the encrypted audio set as priority.

Wherein, different codes in the channel coding field are used to represent whether to enable or enable different channel coding formats.

Wherein, different codes in the field of the packet type represent different operation modes.

Wherein, the format of the transmission packet data further includes an error correction code field, and the packet type field contains an error correction code, and the error correction code is used for the audio signal decoding module to judge that a complete transmission packet cannot be converted. data, the audio signal decoding module can detect and correct the converted transmission packet data according to the error correction code.

Wherein, after the audio signal conversion module converts all codes in the transmission packet data into audio signals, it can mix an external music signal with the code-converted audio signal to form an encrypted audio.

Wherein, the wireless speaker further includes a wireless connection module connected to the control command execution module, the wireless connection module is used to enable the wireless speaker to perform wireless pairing and connection with the mobile electronic device, and the wireless connection Wired mode can connect via Bluetooth or Wi-Fi.

Wherein, the wireless speaker further includes an error detection module, the error detection module is connected with the audio signal decoding module, and can be used when the audio signal decoding module cannot convert the complete transmission packet data. String comparison is performed on the transmission packet data to restore the transmission packet data to be transmitted by the mobile electronic device.

Through the foregoing, the present invention achieves the following technical effects:

1. After the user operates the mobile phone to output an audio signal, and then the wireless speaker receives the sound, the wireless speaker can automatically decode the received audio signal and then obtain the information required for pairing, or to Commands to control the wireless speaker.

2. Using audio signals that are difficult for human ears to enable wireless pairing and connection between mobile electronic devices and wireless speakers or to control the movement of wireless speakers by mobile electronic devices, and audio signals that are difficult for human ears to avoid Encrypted audio emitted is disrupted by human voices.

Description of drawings

Fig. 1: Schematic diagram of the wireless connection and control method for wireless speakers and the wireless connection and control flow of the system according to the present invention.

Figure 2: The overall preliminary schematic diagram of the wireless connection and control method and system for wireless speakers of the present invention.

Figure 3: A schematic diagram of the internal structure of the control application module of the wireless connection and control method for wireless speakers and the system of the present invention.

Fig. 4: A schematic diagram of a comparison table of code names corresponding to audio signals of the wireless connection and control method for wireless speakers and the system of the present invention.

Fig. 5: A schematic diagram of the first implementation of the wireless connection and control method for wireless speakers and the transmission packet data format of the system of the present invention.

Fig. 6: A schematic diagram of the second implementation of the wireless connection and control method for wireless speakers and the transmission packet data format of the system of the present invention.

Fig. 7: A schematic diagram of the internal structure of the wireless speaker for the wireless connection and control method and the system of the present invention.

detailed description

Other technical contents, features and functions of the present invention will be clearly presented in the following detailed description of preferred embodiments with reference to the drawings.

Please refer to Figure 1, which is a schematic diagram of the wireless connection and control process for the wireless speaker system and the wireless connection and control process of the system according to the present invention, and the steps are as follows:

1. After the user opens a control application module on a mobile electronic device, he inputs a control command 101 on an operation interface;

2. The control application module can convert the transmission packet data represented by the control command into an audio signal to form an encrypted audio, wherein the frequency range of the converted audio signal is 10K to 20KHz102;

3. After a wireless speaker receives the encrypted audio played by the mobile electronic device, the wireless speaker can convert the audio signal of the received encrypted audio into transmission packet data 103;

4. Afterwards, the wireless speaker can execute the control command represented by the transmission packet data, so that the mobile electronic device can perform wireless pairing and connection with the wireless speaker or the mobile electronic device can control the action of the wireless speaker 104.

As shown in FIG. 2 , it is an overall preliminary schematic diagram of the wireless connection and control method for a wireless speaker and its system of the present invention. As shown in the figure, the mobile electronic device 1 includes a speaker 11, a control application module 12 and A wireless connection module 13, and the control application module 12 can generate an encrypted audio and play it through the speaker 11, so that the wireless speaker 2 can collect the sound.

It can be seen from FIG. 3 that the control application module 12 includes a control command input interface 121, a transmission packet data conversion module 122, a storage module 123, an audio signal conversion module 124 and an audio signal playback module 125. , wherein the control command input interface 121 can provide an operation interface so that a user can input a control command, and after the user inputs the control command, the transmission packet data conversion module 122 can, according to the content of the input control command, Convert it into transmission packet data with several codes, wherein the format of the transmission packet data includes at least one synchronization signal field, one channel coding field, one packet type field and one data content field, and the transmission The packet data conversion module 122 is to input the control commands input by the user into different fields according to different fields, and input the control commands with different codes into different fields to form the transmission packet data;

The synchronization signal field can be converted into 5 audio sequences, the channel code field can be converted into 5 audio sequences, the packet type field can be converted into 1 audio sequence, and the data content field can be converted into Audio sequences of indefinite length;

The transmission packet data format is shown in Figure 5 and Figure 6, respectively, the transmission packet data generated by different control commands will be different, as shown in Figure 5, when the user inputs the control command on the operation interface To increase the volume, the synchronization signal field is "s5s3s2s1s4", the channel code field is "0", the packet type field is "1", and the data content field is "VOLUP". The content in the signal field is a fixed signal sequence code (for signal parsing only after receiving a signal sequence that conforms to the format), and the different codes in the channel coding field are used to enable different channel coding formats (0 means no Channel encoding format is enabled, 1 means channel encoding format 1 is enabled, 2 means channel encoding format 2 is enabled, 3 means channel encoding format 3 is enabled, 4~9 are reserved), and the contents in the packet type column represent different operation mode (0 represents the setting mode, 1 represents the control mode, 2~9 represent the reserved function), and the data content column is the main control command content and a custom string defined according to the function;

And when the transfer packet data conversion module 122 completes the code in the transfer packet data according to the control command input, then the audio signal conversion module 124 can be based on the built-in comparison table of the storage module 123 (the comparison table is shown in Figure 4 shown), according to each code, it is converted into an audio signal in sequence. In terms of the synchronization signal field, it is to convert "s5s3s2s1s4" into five audio signals of "15250Hz15150Hz15100Hz15050Hz15200Hz"; in terms of the data content field, it is the "VOLUP" is converted into five audio signals of "16850Hz, 16500Hz, 16350Hz, 16800Hz, 16550Hz", and then the audio signals converted from the synchronization signal field, channel code field, packet type field, and data content field are continuously converted into an encrypted audio signal (the converted The frequency range of the audio signal is 10K～20KHz), and the interval time between each audio signal can also be adjusted. The speaker 11 plays (in addition, after the audio signal conversion module 124 converts all the codes in the transmission packet data into audio signals, it can also select an additional music signal and the code-converted audio in the mobile electronic device 1 signals are mixed to form an encrypted audio).

The implementation of the second group of transmission packet data format is shown in Figure 6. When the user enters the control command on the operation interface to set the WI-FI connection data, the synchronization signal field is "s5s3s2s1s4", channel code The field is "2", the packet type field is "0", and the data content field is "qw13gYT79NjhiwDDfe8EA67H421RTEYE". The content of the data content field is encrypted content, so when the audio signal plays the module 125 After playing the encrypted audio through the speaker 11 of the mobile electronic device 1, the wireless speaker 2 collects the encrypted audio to obtain the encrypted audio.

As can be seen in Figure 7, the wireless speaker 2 includes an audio signal receiving module 21, a storage module 22, an audio signal decoding module 23, a control instruction execution module 24, a wireless connection module 25 and an error detection module. Module 26, wherein the audio signal receiving module 21 is used to receive the encrypted audio, and the storage module 22 has a built-in comparison table of the code corresponding to the audio signal, a fixed signal sequence code, a decoding table and a name correspondence table, so when The audio signal decoding module 2 can convert the received encrypted audio audio signal into transmission packet data with several codes according to the built-in comparison table of the storage module;

In addition, the audio signal decoding module 23 will first judge whether there is the fixed signal sequence code in the converted transmission packet data first, and continue to transmit the packet if it is judged that there is indeed the fixed signal sequence code The analysis of the data is described with the embodiment of Fig. 6. When the audio signal decoding module 23 first converts the audio signal to "s5s3s2s1s4", it is judged to be the same as the fixed signal sequence code stored in the storage module 22. , so continue to convert the audio signal of the channel encoding field to "2", which means that the channel encoding format 2 is enabled;

After that, continue to convert the audio signal to "0" in the field of packet type, and judge that it represents the setting mode; then convert the audio signal to "qw13gYT79NjhiwDDfe8EA67H421RTEYE" in the field of data content, because it has been encrypted, so "qw13gYT79NjhiwDDfe8EA67H421RTEYE" must be decoded again, and it is decoded as ws:JAZZwp:12345678, and the wireless speaker 2 can understand that the SSID for WIFI connection is JAZZ, and the PIN is 12345678 (the name correspondence table has defined ws as SSID, wp PIN), so the wireless speaker 2 will execute the module 24 through the control command to decode the transmission packet data converted by the audio signal decoding module 23, analyze and execute the transmission packet data represented by the transmission packet data. control instructions, so that the mobile electronic device 1 can perform wireless pairing and connection with the wireless speaker 2 (or the mobile electronic device 1 controls the operation of the wireless speaker 2).

Because, the frequency range of the audio signal converted in the present invention is 10K～20KHz, this frequency range is the frequency range that the human ear is difficult to hear, also is the frequency range that the human voice has no way to send out, mainly in order to avoid the human voice from interfering with the emitted Encrypted audio, but if the encrypted audio is still disturbed by external environmental sounds and causes errors, the present invention has the following two processing methods:

(1) There is an error detection module 26 in the wireless speaker 2, and the error detection module 26 is used for when the audio signal decoding module 23 cannot convert the complete transmission packet data, if the mobile electronic device 1 wants to transmit When the wireless network base station name (CHT45238) is given to the wireless speaker 2, but the audio signal decoding module 23 only solves C_T_5_38, the wireless speaker 2 will search in the nearby network environment, for example, after finding CHT45238 and CHT23156, The error detection module 26 will use the LongestCommonSubsequence algorithm as a basis to compare the transmission packet data (C_T_5_38) with CHT45238 and CHT23156. CHT45238 restores the C_T_5_38.

(2) But if there is no character string that can be compared, then an error correction code field can be added in the format of the transmission packet data, and an error correction code is included in the packet type field, and the error correction code is used for the When the audio signal decoding module 23 determines that the complete transmission packet data cannot be converted, the audio signal decoding module 23 can detect and correct the converted transmission packet data according to the error correction code.

The wireless connection and control method and system for wireless speakers provided by the present invention, when compared with other conventional technologies, have the following advantages:

1. The present invention allows the user to operate the mobile phone to output an audio signal, and after the wireless speaker receives the sound, the wireless speaker can automatically decode the received audio signal and then obtain the data required for pairing, Or commands to control the wireless speaker.

2. The present invention can use audio signals that are difficult for human ears to enable wireless pairing and connection between mobile electronic devices and wireless speakers, or allow mobile electronic devices to control the movement of wireless speakers, but audio signals that are difficult for human ears to hear It is possible to avoid interference with the transmitted encrypted audio due to human voices.

The present invention has been disclosed above through the above-mentioned embodiments, but it is not intended to limit the present invention. Anyone who is familiar with this technical field and has ordinary knowledge can understand the foregoing technical characteristics and embodiments of the present invention without departing from the present invention. Within the spirit and scope of the present invention, some changes and modifications can be made, so the patent protection scope of the present invention must be defined by the appended claims of this specification.

Claims (15)

1. A wireless connection and control method for a wireless speaker, characterized in that it comprises: After the user opens a control application module on a mobile electronic device, he inputs a control command on an operation interface; The control application module can convert the transmission packet data represented by the control command into an audio signal to form an encrypted audio signal, wherein the frequency range of the converted audio signal is 10K-20KHz; After a wireless speaker receives the encrypted audio played by the mobile electronic device, the wireless speaker can convert the audio signal of the received encrypted audio into transmission packet data; Afterwards, the wireless speaker can execute the control command represented by the transmission packet data, so that the mobile electronic device can perform wireless pairing and connection with the wireless speaker or the mobile electronic device can control the action of the wireless speaker. 2. The wireless connection and control method for a wireless speaker according to claim 1, wherein the transmission packet data represented by the control command further includes a fixed signal sequence code, and the wireless speaker stores the fixed signal Serial code, the wireless speaker will first judge whether there is the fixed signal serial code in the converted transmission packet data, and continue to transmit the packet data if it judges that there is the fixed signal serial code parse. 3. The wireless connection and control method for a wireless speaker according to claim 1, wherein the transmission packet data represented by the control command further includes an error correction code, and the error correction code is used for the wireless speaker When it is judged that the complete transmission packet data cannot be converted, the error correction code can be used to detect and correct the converted transmission packet data. 4. The wireless connection and control method for a wireless speaker as claimed in claim 1, characterized in that, when the wireless speaker judges that the complete transmission packet data cannot be converted, the transmission packet data can be compared for character strings, To restore the transmission packet data to be sent by the mobile electronic device. 5. The wireless connection and control method for wireless speakers as claimed in claim 1, characterized in that, after the control application module converts the transmission packet data represented by the control command into an audio signal, it can then convert a music signal Mixing with the converted audio signal to form an encrypted audio. 6. A wireless connection and control system for wireless speakers, characterized in that it comprises: A control application module installed in a mobile electronic device with a speaker and a wireless connection module, and the control application module includes: A control command input interface, providing an operation interface for allowing a user to input control commands; A transmission packet data conversion module, connected to the control command input interface, used to convert the input control command into transmission packet data with several codes; A storage module with a built-in comparison table of codes corresponding to audio signals; An audio signal conversion module is connected with the transmission packet data conversion module and the storage module, and the control command conversion module can convert all the codes in the transmission packet data according to the comparison table built in the storage module Convert to an audio signal to form an encrypted audio, wherein the frequency range of the converted audio signal is 10K ~ 20KHz; An audio signal playing module is connected with the audio signal conversion module, and the audio signal playing module can play the encrypted audio through the speaker of the mobile electronic device; A wireless speaker, comprising: An audio signal receiving module for receiving the encrypted audio; A storage module, built-in a comparison table and a decoding table of codes corresponding to audio signals; An audio signal decoding module, connected to the audio signal receiving module, is used to convert the received encrypted audio audio signal into transmission packet data with several codes according to the built-in comparison table of the storage module; as well as A control instruction execution module is connected with the audio signal decoding module, and is used to analyze the transmission packet data converted by the audio signal decoding module, and execute the control instruction represented by the transmission packet data, so as to The mobile electronic device can perform wireless pairing and connection with the wireless speaker or the mobile electronic device controls the action of the wireless speaker. 7. The wireless connection and control system for wireless speakers as claimed in claim 6, wherein the transmission packet data further includes a fixed signal sequence code, and the storage module of the wireless speaker will store the Fixed signal sequence code, the audio signal decoding module will firstly judge whether there is the fixed signal sequence code in the converted transmission packet data, and continue only after judging that it has the fixed signal sequence code Analysis of transmitted packet data. 8. The wireless connection and control system for wireless speakers as claimed in claim 6, wherein the format of the transmission packet data at least includes a synchronization signal field, a channel encoding field, and a packet type field and a data content field, and the transmission packet data conversion module can input the control commands input by the user into different fields according to different fields, and input the control commands with different codes into different fields to form the transmission packet data. 9. The wireless connection and control system for wireless speakers as claimed in claim 8, wherein the synchronization signal field contains a fixed signal sequence code, and the audio signal conversion module can first convert the synchronization signal field The code of the code is first converted into an audio signal, and the converted audio signal is set as the priority in the playback order of the encrypted audio. 10 . The wireless connection and control system for wireless speakers as claimed in claim 8 , wherein different codes in the channel code field are used to represent whether to enable or enable different channel code formats. 11 . 11. The wireless connection and control system for wireless speakers as claimed in claim 8, wherein different codes in the packet type field represent different operation modes. 12. The wireless connection and control system for wireless speakers as claimed in claim 8, wherein the format of the transmission packet data further includes an error correction code field, and the packet type field includes an error correction code field. When the error correction code is used by the audio signal decoding module to determine that the complete transmission packet data cannot be converted, the audio signal decoding module can detect and correct the converted transmission packet data according to the error correction code. 13. The wireless connection and control system for wireless speakers as claimed in claim 6, characterized in that, after the audio signal conversion module converts all the codes in the transmission packet data into audio signals, it can convert an additional music The signal is mixed with the transcoded audio signal to form an encrypted audio. 14. The wireless connection and control system for wireless speakers as claimed in claim 6, wherein the wireless speaker further comprises a wireless connection module connected to the control instruction execution module, the wireless connection module The combination is used to enable the wireless speaker to perform wireless pairing and connection with the mobile electronic device, and the wireless connection mode can be connected in the form of bluetooth or Wi-Fi. 15. The wireless connection and control system for wireless speakers as claimed in claim 6, characterized in that, the wireless speaker further comprises an error detection module, and the error detection module is connected with the audio signal decoding module is used to perform string comparison on the transmission packet data when the audio signal decoding module cannot convert the complete transmission packet data, so as to restore the transmission packet data to be transmitted by the mobile electronic device.