WO2016023516A1 - Sound wave sending method, receiving method, sending device and receiving device and system - Google Patents

Abstract

The present invention is applied to the technical field of sound wave communications. Provided are a sound wave sending method, receiving method, sending device and receiving device and system. The sound wave receiving method comprises: receiving, by several channels of a sound wave apparatus, sound wave communication access information in a fixed frequency modulation manner, the sound wave communication access information comprising several preferred frequencies supported by several channels of a mobile terminal; after the sound wave communication access information is received, respectively establishing connections for the several channels and the several channels of the mobile terminal; extracting the several preferred frequencies, and respectively configuring the several preferred frequencies as sending frequencies and receiving frequencies of the several channels; sending, by the several channels, sound wave communication response information at the configured several preferred frequencies; and closing a processing thread of the sound wave communication access information, so as to shield the sound wave communication access information. The present invention also improves the stability of data communication while guaranteeing that the data communication is conducted between only two apparatuses in a sound wave system.

Description

Sound wave transmitting method, receiving method, transmitting device, receiving device and system Technical field

The invention belongs to the technical field of acoustic wave communication, and particularly relates to a sound wave transmitting method, a receiving method, a transmitting device, a receiving device and a system.

Background technique

In the current life, the data transmission technology that applies sound waves between terminals is compared with the traditional near-field communication technology. Because of its high reliability, strong security, fast data transmission speed and low cost, it has been widely used. Business communication field.

When performing sound wave-based data transmission, that is, acoustic wave communication, first, the sound wave is transmitted by the party (ie, the sender) that initiates the sound wave communication, and the sound wave is received by the party (ie, the receiver) that responds to the sound wave communication, thereby establishing a sound wave communication mechanism. Here, the initiator and responder of the sonic communication may be any terminal having a sound wave transmitting and receiving function, including: a smartphone, a notebook computer, a portable communication device, a PDA (Personal Digital Assistant, a personal digital assistant or a tablet), and Audio access control device, audio recognition and transaction payment terminal Key. In order to facilitate the distinction, in the following, a party that initiates voice communication is referred to as a "mobile terminal", and a party that responds to voice communication is referred to as a "sound wave device."

In the prior art, the mobile terminal and the acoustic wave device must transmit and receive sound waves at corresponding fixed and known acoustic wave frequencies to establish a communication mechanism, that is, the fixed frequency at which the mobile terminal transmits the acoustic wave and the fixed frequency at which the acoustic wave device receives the acoustic wave. Matching, the fixed frequency of the sound wave transmitted by the sound wave device matches the fixed frequency of the sound wave received by the mobile terminal, and the two can establish a sound wave communication mechanism. There is a lack of autonomous adaptation mechanism between the mobile terminal and the acoustic wave device, resulting in poor compatibility between them and a low success rate of data transmission.

Summary of the invention

An object of the embodiments of the present invention is to provide a method for transmitting sound waves, which can perform autonomous adaptation of sound waves between a mobile terminal and an acoustic wave device, improve compatibility between communication terminals, and success rate of data transmission. The sound wave sending method includes:

A plurality of channels of the mobile terminal respectively select a set of sound wave frequencies as the transmission frequency;

The plurality of channels respectively transmit sound wave communication access information by using a selected transmission frequency, where the sound wave communication access information includes a plurality of preferred frequencies supported by a plurality of channels of the mobile terminal;

The plurality of channels respectively detect whether the acoustic communication response information is received;

If yes, the sending of the sonic communication access information is stopped, and the connection between the plurality of channels and the sound wave device is respectively established, and if not, the following group of transmission frequencies continues to transmit the sonic communication access information;

The several preferred frequencies supported by the respective configurations are the transmission frequencies and the reception frequencies of the several channels.

Another object of the present invention is to provide an acoustic wave receiving method, which is intended to solve the problem that when a sound wave device communicates with a mobile terminal, it cannot guarantee that data communication is performed only with one mobile terminal at the same time, resulting in a communication conflict in the process of data communication. And the frequency of communicating with the mobile terminal using the frequency of its own channel, resulting in a problem of low stability of data communication. The sound wave receiving method includes:

The plurality of channels of the acoustic wave device receive the acoustic wave communication access information in a fixed frequency modulation manner, and the sound wave communication access information includes a plurality of preferred frequencies supported by the plurality of channels of the mobile terminal;

After receiving the acoustic communication access information, establishing a connection between the plurality of channels and the plurality of channels of the mobile terminal respectively;

Extracting the plurality of preferred frequencies, and configuring the plurality of preferred frequencies as a transmission frequency and a receiving frequency of the several channels;

The plurality of channels transmit sound wave communication response information by using a configured transmission frequency;

The processing thread of the sound wave communication access information is turned off to shield the sound wave communication access information.

Another object of the embodiments of the present invention is to provide a method for transmitting sound waves, including:

A plurality of channels of the mobile terminal respectively select a transmission frequency by means of random frequency modulation;

The plurality of channels respectively transmit sound wave communication access information by using a selected transmission frequency, where the sound wave communication access information includes a plurality of preferred frequencies supported by a plurality of channels of the mobile terminal;

The plurality of channels respectively detect whether the acoustic communication response information is received;

If yes, the sending of the sound wave communication access information is stopped, and the connection between the plurality of channels and the sound wave device is respectively established, and if not, the sound wave communication access information is continuously sent;

The several preferred frequencies supported by the respective configurations are the transmission frequencies and the reception frequencies of the several channels.

Another object of the embodiments of the present invention is to provide an acoustic wave receiving apparatus, including:

Preferably, the frequency receiving unit is configured to receive the acoustic wave communication access information in a fixed frequency modulation manner, where the sound wave communication access information includes a plurality of preferred frequencies supported by the plurality of channels of the mobile terminal;

a first channel establishing unit, configured to establish, after receiving the sound wave communication access information, a connection between the plurality of channels and the plurality of channels of the mobile terminal;

a first preferred frequency configuration unit, configured to extract the plurality of preferred frequencies, and configure the plurality of preferred frequencies as a transmission frequency and a receiving frequency of the several channels;

The sound wave communication response information sending unit is configured to send the sound wave communication response information by using the configured transmission frequency of the plurality of channels;

The sound wave communication access information shielding unit is configured to close the processing thread of the sound wave communication access information to shield the sound wave communication access information.

Another object of the embodiments of the present invention is to provide an acoustic wave transmitting apparatus, including:

a transmission frequency selection unit, configured to select a transmission frequency by using a random frequency modulation method for each of the plurality of channels;

The sound wave communication access information sending unit is configured to send the sound wave communication access information by using the selected sending frequency, where the sound wave communication access information includes a plurality of preferred frequencies supported by the plurality of channels of the mobile terminal;

The sound wave communication response information detecting unit is configured to detect whether the sound wave communication response information is received by the plurality of channels respectively;

a second channel establishing unit, configured to stop transmitting the sound wave communication access information, and establish a connection between the plurality of channels and the sound wave device, and if not, continue to send the sound wave communication access information;

The second preferred frequency configuration unit is configured to separately configure a plurality of preferred frequencies supported by the transmission frequency and the reception frequency of the several channels.

Another object of an embodiment of the present invention is to provide an acoustic wave system including the above-described acoustic wave receiving device and the above-described acoustic wave transmitting device.

In the embodiment of the present invention, the plurality of preferred frequencies are extracted, and the plurality of preferred frequencies are configured as the transmission frequency and the receiving frequency of the several channels to prevent other mobile terminals from joining during the data transmission of the acoustic system. Frequency interference, closing the processing thread of the sound wave communication access information, preventing interference of the sound wave communication access information of other mobile terminals in the communication gap to the sound wave system, thereby ensuring data communication between only two devices in one sound wave system, and Improve the stability of data communication.

DRAWINGS

1 is a flowchart of a communication method according to Embodiment 1 of the present invention;

2 is a flowchart of a communication method according to Embodiment 2 of the present invention;

3 is a schematic block diagram of a communication system in accordance with a preferred embodiment of the present invention;

4 is a diagram showing a preferred example of an acoustic wave system in which communication conflicts exist;

FIG. 5 is a flowchart of implementing an acoustic wave receiving method according to an embodiment of the present invention;

FIG. 6 is a flow chart showing a preferred implementation of the acoustic wave receiving method according to an embodiment of the present invention;

7 is a flowchart of implementing an acoustic wave sending method according to an embodiment of the present invention;

FIG. 8 is a flow chart showing a preferred implementation of the method for transmitting sound waves according to an embodiment of the present invention;

FIG. 9 is a structural diagram of an acoustic wave receiving apparatus according to an embodiment of the present invention; FIG.

FIG. 10 is a structural diagram of an acoustic wave transmitting apparatus according to an embodiment of the present invention; FIG.

FIG. 11 is a flow chart showing a better information interaction between the acoustic wave receiving device and the acoustic wave transmitting device in the acoustic wave system according to the embodiment of the present invention.

detailed description

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The terms "mobile terminal" and "sound wave device" appearing in the embodiments of the present invention are only used to distinguish between the party that initiates the communication in the voice communication and the party that receives the communication, and are not the type of the terminal (or device) that initiates or receives the communication. limit. Both the "mobile terminal" and the "sound wave device" may be a smart phone, a notebook computer, a portable communication device, a PDA (Personal Digital Assistant, a personal digital assistant or a tablet), an audio access control device, an audio recognition and transaction payment terminal Key, and the like. Based on this, the acoustic wave communication method related to the present invention can be applied to access control card swiping, face-to-face transaction payment, identity authentication, and the like.

Embodiment 1

Referring to FIG. 1, the communication method in this embodiment includes the following steps: Step S11: The mobile terminal transmits information about a preferred frequency of the receivable sound wave, and the modulation is applied to the first group of sound waves having at least two frequency segments. Here, the frequency of the first group of sound waves of at least two frequency frequencies is the transmission frequency of the mobile terminal.

It should be noted that data encoding is also required before modulating the information of the preferred frequency. The modulated preferred frequency information is embodied as a set of coded modulated data, so the set of coded modulated data must be digital-to-analog converted to obtain corresponding analog information, and then the analog information is loaded onto the first set of sound waves, which are of course issued. It is also possible to emit the first set of sound waves simultaneously.

In this embodiment, it is preferred that the first group of acoustic waves have three segments of acoustic frequencies and are non-second harmonic frequencies. Of course, in other embodiments, those skilled in the art may also set the frequency of the first group of sound waves to have other numbers of segments. The rate is not limited by the present invention.

After the first set of sound waves is emitted, the mobile terminal turns on its own recording device, such as a microphone, to prepare to receive information that the acoustic wave device feeds back in the form of sound waves.

Step S12: The acoustic wave device takes the first set of sound waves emitted by the mobile terminal, and demodulates the first group of sound waves by using a preset receiving frequency.

The sound wave device sequentially records the first group of sound waves emitted by the mobile terminal through its own recording device, such as a microphone, and then performs analog-to-digital conversion on the received first group of sound waves, and then demodulates the first group of sound waves after the analog-to-digital conversion. decoding.

Demodulation is the reverse process of modulation, that is, information obtained from a first set of sound waves having three different frequencies (high frequencies) without distortion is obtained, and the demodulation frequency must be selected during demodulation.

Step S13: It is judged whether the sound wave device demodulates the information of the preferred frequency.

If the sound wave device does not demodulate the information of the preferred frequency, indicating that the sound wave device cannot demodulate the first group of sound waves by using the receiving frequency, that is, the sound wave device cannot communicate with the mobile terminal at the receiving frequency, step S14 is performed. Conversely, if the acoustic wave device demodulates the information of the preferred frequency, indicating that the acoustic wave device can demodulate the first set of acoustic waves by using the receiving frequency, that is, the acoustic wave device can communicate with the mobile terminal at the receiving frequency, step S15 is performed.

Step S14: The mobile terminal applies information modulation of the preferred frequency to the second group of sound waves.

Wherein, the second group of sound waves have at least two stages of sound wave frequencies different from the first group of sound waves, and the second group of sound waves have the same number of sound wave frequencies as the first group of sound waves, or may be different. The second group of sound waves in this embodiment is an upper level having at least two stages of sound wave frequencies different from the first group of sound waves, that is, as long as the sound wave device cannot obtain the information of the preferred frequency by the receiving frequency demodulation, step S11 is repeated. The mobile terminal loads the information of the preferred frequency into the sound waves of the other segment frequencies and issues it until step S13 is not performed after step S13, but performs step S15.

Step S15: The mobile terminal and the acoustic wave device communicate by the preferred frequency and the receiving frequency.

Based on the above, it can be seen that the present embodiment transmits sound waves having different frequencies one or more times between the mobile terminal as the sender and the sound wave device as the receiver until the acoustic wave device can adopt the advance The specified receiving frequency demodulates the first group of sound waves sent by the mobile terminal to obtain information about the preferred frequency of the receivable sound wave of the first group of sound wave loaded mobile terminals, and the receiving frequency and the preferred frequency are used as communication between the two parties. The sonic frequency enables self-adaptation of the acoustic frequency between communication terminals, improves compatibility between communication terminals, and improves the success rate of data transmission between communication terminals.

Embodiment 2

Referring to FIG. 2, based on the description of the first embodiment, the communication method of this embodiment includes the following steps:

Step S21: The mobile terminal applies modulation of the first model of its own and the preferred frequency of the receivable acoustic wave to the first group of sound waves having at least two frequency frequencies.

Step S22: The acoustic wave device takes the first set of sound waves emitted by the mobile terminal, and demodulates the first group of sound waves by using a preset receiving frequency.

In this embodiment, it is preferred that the mobile terminal detects whether it has been adapted with other terminals (devices) before the current communication, that is, whether the mobile terminal detects whether the first model of the mobile terminal and the model of the other terminal and the frequency of the sound wave receivable by the mobile terminal are Other acoustic frequencies have a mapping relationship. If there is a mapping relationship, it means that the mobile terminal has been adapted before. At this time, it is preferable to select the adapted sound wave frequency as the demodulation frequency, that is, the receiving frequency demodulates the first group of sound waves sent by the mobile terminal.

Step S23: determining whether the sound wave device demodulates information of the first model and the preferred frequency.

If the sound wave device does not demodulate the information of the first model and the preferred frequency, indicating that the sound wave device cannot demodulate the first group of sound waves by using the receiving frequency, that is, the sound wave device cannot communicate with the mobile terminal at the receiving frequency, step S24 is performed. Conversely, if the acoustic wave device demodulates the information of the first model and the preferred frequency, indicating that the acoustic wave device can demodulate the first group of sound waves by using the receiving frequency, that is, the acoustic wave device can communicate with the mobile terminal at the receiving frequency, then the steps are performed. S25.

Step S24: The mobile terminal applies information modulation of the first model and the preferred frequency to the second group of sound waves.

Step S25: The acoustic wave device applies modulation of its own second model and receiving frequency to the sound wave having the preferred frequency.

Step S26: The mobile terminal and the acoustic wave device communicate by the preferred frequency and the receiving frequency.

In this step, the mapping relationship between the second model and the first model and the receiving frequency and the preferred frequency is further recorded, so that the mobile terminal and the acoustic wave device directly perform the adaptation of the acoustic wave frequency according to the mapping relationship in the subsequent communication. For this purpose, in this embodiment, it is preferred that the mobile terminal and the acoustic wave device both record the mapping relationship.

3 is a schematic block diagram of a preferred embodiment of a communication system of the present invention. Referring to FIG. 3, the communication system of this embodiment includes a mobile terminal 10 and a sound wave device 20. The mobile terminal 10 includes a first microphone 11, a first digital/analog conversion module 12, a first modem module 13, and a first The horn 14 and the first matching module 15 include a second microphone 21, a second digital/analog conversion module 22, a second modem module 23, a second horn 24, and a second matching module 25. In this embodiment:

The first digital/analog conversion module 12 is configured to perform digital-to-analog conversion of information of a preferred frequency of the receivable sound wave of the mobile terminal 10. The first modem module 13 is configured to apply information modulation of a preferred frequency onto a first set of sound waves having at least two frequency segments. The first horn 14 is used to emit a first set of sound waves. among them,

The first group of sound waves has three different frequencies, and the first modem module 13 of the mobile terminal 10 is configured to apply information modulation of the preferred frequency to the first group of sound waves having three different frequencies, and the first speaker 14 is used for A first group of sound waves having three different frequencies is sequentially emitted.

The second microphone 21 of the acoustic wave device 20 is used to capture the first set of sound waves emitted by the first speaker 14 of the mobile terminal 10. The second digital/analog conversion module 22 is configured to perform analog-to-digital conversion on the first set of sound waves recorded by the second microphone 21. The second modem module 23 is configured to demodulate the first group of sound waves that are taken by the second microphone 21 and that are analog-to-digital converted by the second digital-to-analog conversion module 22, with a predetermined frequency of reception.

If the second modem module 23 does not demodulate the information of the preferred frequency, the first modem module 13 of the mobile terminal 10 is further configured to apply the information modulation of the preferred frequency to the second group of sound waves, wherein the second The group of acoustic waves has at least two frequency frequencies that are different from the first set of acoustic waves.

If the second modem module 23 demodulates the information of the preferred frequency, the mobile terminal 10 and the acoustic wave device 20 communicate by the preferred frequency and the receiving frequency.

Further, the first modem module 13 of the mobile terminal 10 can also be used to connect the mobile terminal 10 The information of the first model and the preferred frequency is modulated and applied to a first group of sound waves having three different frequencies, and the first speaker 14 is used to sequentially emit the first group of sound waves having three different frequencies.

If the second modem module 23 does not demodulate the information of the first model and the preferred frequency, the first modem module 13 of the mobile terminal 10 is further configured to apply the information modulation of the preferred frequency to the second group of sound waves. .

If the second modem module 23 demodulates the information of the first model and the preferred frequency, the mobile terminal 10 and the acoustic device 20 communicate by the preferred frequency and the receiving frequency.

Then, the second matching module 25 is configured to record the mapping relationship between the first model, the second model, and the preferred frequency and the receiving frequency, so that the mobile terminal 10 and the acoustic wave device 20 directly perform the acoustic wave frequency according to the mapping relationship in later communication. Adaptation. further,

The second modem module 23 is configured to modulate information of the second model of the acoustic wave device 20 and the received frequency onto sound waves having a preferred frequency. The second horn 24 is for emitting sound waves having a preferred frequency.

The first microphone 11 of the mobile terminal 10 is used to capture sound waves having a preferred frequency from the second horn 24 of the acoustic wave device 20. The first modem module 13 is further configured to demodulate the sound wave with a preferred frequency to obtain information of the second model and the receiving frequency.

The first matching module 15 is configured to record a mapping relationship between the first model, the second model, and the preferred frequency and the receiving frequency, so that the mobile terminal 10 and the acoustic wave device 20 directly perform the sound wave frequency according to the mapping relationship in later communication. Match.

Each module of the communication system of this embodiment corresponds to the steps described in the foregoing embodiment of the communication method, and thus has the same advantageous effects. In addition, it should be understood that the implementation of the communication system described above is merely illustrative, and the division of the described modules is only a logical function division, and may be further divided in actual implementation, such as the mobile terminal 10 and The sound wave device 20 can respectively set the first and second determining modules to determine whether the second modem module 23 demodulates the information of the first model and the preferred frequency, or sets the first and second processing modules for Control each module to perform corresponding operations, or multiple modules can be combined or integrated into another system, or These features can be ignored or not executed. In addition, the coupling or communication connection of the modules to each other may be through some interfaces, or may be electrical or other forms.

On the other hand, in the acoustic wave system, when the acoustic wave device communicates with the mobile terminal, it cannot guarantee that only one mobile terminal performs data communication at the same time, and there is a communication conflict in the process of data communication.

For convenience of explanation, reference is made to FIG. 4, which is a diagram of a preferred example of an acoustic wave system in which communication conflicts exist.

The mobile terminal 1 establishes a connection with the sound wave device, and the sound wave device continues to receive the sound wave communication access information sent by the mobile terminal 2 in the gap of the communication, and cannot guarantee data communication with only one mobile terminal at the same time, and the mobile terminal 2 sends the data. The sound wave communication access information causes a communication conflict between the sound wave device and the data transmission of the mobile terminal.

In addition, the acoustic wave device communicates with the mobile terminal by using the frequency of its own channel. Since the frequency of the own channel is often different from the several preferred frequencies supported by the mobile terminal, the stability of data communication is low.

To solve these problems, the present invention provides the following embodiments.

Embodiment 3

Referring to FIG. 5, FIG. 5 is a flowchart of implementing an acoustic wave receiving method according to an embodiment of the present invention, which is described in detail as follows:

In step S201, the plurality of channels of the acoustic wave device respectively receive the acoustic wave communication access information in a fixed frequency modulation manner, and the sound wave communication access information includes a plurality of preferred frequencies supported by the plurality of channels of the mobile terminal.

The number of the channels is not limited herein, and may be one channel or two channels or multiple channels.

The format of the voice communication access information may be set by the user or may be the system default. For example, the format of the acoustic communication access information is “0x00, 0x13, 0x00, 0x00, 0x01, X1, X2, X3...”, where X1, X2, X3...XN are several preferred frequencies, and the number of preferred frequencies is based on the number of channels. N depends.

Wherein, the acoustic wave device is a device that can receive a mobile communication based on audio communication, for example, a sound wave KEY.

The method of fixed frequency modulation is to sequentially poll the frequency points in the frequency table, and several channels respectively select the frequency communication corresponding to the frequency points according to the frequency points to receive the sound wave communication access information.

Each channel is frequency modulated according to the frequency of the fixed frequency modulation to obtain the corresponding frequency.

For convenience of explanation, the three-channel number is taken as an example.

Referring to Table 1, Table 1 is a three-channel FM meter for acoustic equipment.

Table I

Frequency band	Channel 1	Channel 2	Channel 3
				1	16KHZ	15KHZ	14KHZ
2	13KHZ	12KHZ	11KHZ
				3	10KHZ	9KHZ	8KHZ
4	7KHZ	6KHZ	5KHZ

Among them, the acoustic wave device waits for receiving by cyclically waiting for reception, and the three-channel frequency modulation picture starts from high frequency: 16KHZ-15KHZ-14KHZ, 13KHZ-12KHZ-11KHZ, 10KHZ-9KHZ-8KHZ, 7KHZ-6KHZ-5KHZ cycle.

For example, when the polling frequency is 1, the frequency of channel 1 is 16KHZ, the frequency of channel 2 is 15KHZ, and the frequency of channel 3 is 14KHZ. When the polling frequency is 2, Channel 1 frequency modulation gets the corresponding frequency to be 13KHZ, channel 2 frequency modulation to get the corresponding frequency is 12KHZ, channel 3 frequency modulation to get the corresponding frequency is 11KHZ. The three-channel cyclic frequency modulation method traverses the entire frequency band, which can effectively reduce the time for device access.

In step S202, after receiving the sound wave communication access information, establishing a connection between the plurality of channels and the plurality of channels of the mobile terminal respectively;

When the acoustic communication access information is received, the frequency obtained by fixed frequency modulation of several channels of the acoustic wave device at this time establishes a connection between several channels and several channels of the mobile terminal.

In step S203, the plurality of preferred frequencies are extracted, and the plurality of preferred frequencies are configured as a transmission frequency and a reception frequency of the several channels; wherein the plurality of preferred frequencies are configured as the plurality of channels The implementation frequency of the transmission frequency and reception frequency is as follows:

X1, X2, X3...XN are several preferred frequencies, which are respectively configured as channel 1, channel 2, channel 3, ... The frequency of channel N.

For convenience of explanation, the three-channel number is taken as an example.

For example, when the acoustic wave device channel 1, channel 2, channel 3, in a fixed frequency modulation mode, when the polling frequency is 1, the channel 1 frequency modulation obtains the corresponding frequency is 16KHZ, the channel 2 frequency modulation obtains the corresponding frequency is 15KHZ, the channel 3 When the frequency is 14KHZ, if several received frequencies are 9KHZ, 12KHZ, 8KHZ, 9KHZ is the transmission frequency and receiving frequency of channel 1, and 12KHZ is configured as the transmission frequency and receiving frequency of channel 2. Configure 8KHZ as the transmission frequency and reception frequency of channel 3. It should be noted that the preferred frequency is the preferred frequency of the mobile terminal in one channel. There may be several channels in the mobile terminal. The mobile terminal may have multiple frequencies in one channel. For example, the mobile terminal may have channel A, channel B, and channel C. In channel A, there are three frequencies A1, A2, and A3. The preferred frequency is the A2 frequency, then the A2 frequency is the preferred frequency of the A channel, and the channel B has three frequencies B1, B2, B3, and B4. If the preferred frequency is the B2 frequency, then the B2 frequency is the B channel. Preferably, the frequency C has three frequencies C1, C2, C3, and C4. If the preferred frequency is the C2 frequency, then the C2 frequency is the preferred frequency of the C channel.

The plurality of preferred frequencies are configured as the transmission frequency and the receiving frequency of the plurality of channels, so that the frequency of the acoustic wave device is communicated with the mobile terminal by using the frequency of the channel, and the frequency of the channel itself is often supported by the mobile terminal. The preferred frequencies are different, resulting in a problem of low stability of data transmission, which improves the stability of the system.

In step S204, the plurality of channels send the acoustic wave communication response information by using the configured transmission frequency;

The plurality of channels send the voice communication response information by using the configured sending frequency, specifically:

Each of the plurality of channels transmits acoustic wave communication response information at a preferred one of the plurality of preferred frequencies configured; or

Each of the plurality of channels transmits acoustic wave communication response information at the configured preferred frequency.

In step S205, the processing thread of the sound wave communication access information is turned off to shield the sound wave communication access information.

After the connection is successful, the processing thread of the acoustic communication access information is closed, and the response to the acoustic communication access information is turned off until the communication of the currently connected device ends.

In this embodiment, by closing the processing thread of the acoustic wave communication access information, it is ensured that only one mobile terminal performs data communication at the same time, which solves the communication conflict in the process of data communication, and greatly reduces other devices in the transmission process. Interference in communication conflicts during access.

Embodiment 4

This embodiment describes an implementation process of unmasking the acoustic wave communication access information after the processing thread that closes the sound wave communication access information is closed to shield the sound wave communication access information, as follows:

Detecting whether the connection is disconnected;

After the connection is disconnected, the processing thread of the acoustic communication access information is restored to cancel the shielding of the acoustic communication access information.

In this embodiment, the acoustic wave device detects whether the connection is disconnected, and after the connection is disconnected, the processing thread of the acoustic wave communication access information is restored to cancel the shielding of the acoustic wave communication access information. The sound wave device can be connected to other mobile terminals in response to the sound wave communication access information.

Embodiment 5

Referring to FIG. 6, FIG. 6 is a flowchart of a preferred implementation of the acoustic wave receiving method according to an embodiment of the present invention, which is described in detail as follows:

S301. The sound wave device configures a frequency of the receiving channel;

S302, whether there is mobile terminal access, if yes, step S304 is performed, otherwise step S303 is performed;

S303, the sound wave device jumps to the next frequency point;

S304, the frequency of the channel is set to a preferred communication frequency of the mobile terminal, and the processing thread of the acoustic communication access information is closed;

S305, transaction communication.

Embodiment 6

Referring to FIG. 7, FIG. 7 is a flowchart of implementing an acoustic wave sending method according to an embodiment of the present invention, which is described in detail as follows:

In step S401, a plurality of channels of the mobile terminal respectively select a transmission frequency by means of random frequency modulation;

The plurality of channels of the mobile terminal respectively select a transmission frequency by using a random frequency modulation method, specifically:

Each of the channels of the mobile terminal acquires a random number in a pre-stored random number table;

Select a frequency point according to the obtained random number;

In the pre-stored frequency table, a frequency corresponding to the frequency point is selected as a transmission frequency of each of the channels;

The frequency table includes the frequency point and a frequency corresponding to the frequency point.

When the mobile device is looking for access, the signal is transmitted by using a random frequency modulation method, and the transmission frequency is frequency-modulated according to a random number table built in each mobile device.

According to the obtained random number, the random number is subjected to modulo operation of the number of frequency points to obtain a modulus value. For example, if the transmission frequency band is 5KHZ to 16KHZ, the random number X is used to perform the modulo operation of the modulo value M=X%12, and the transmission frequency of the current channel is obtained according to the modulo value table.

For convenience of explanation, the three-channel number is taken as an example.

Referring to Table 2, Table 2 is a mobile terminal three-channel FM table.

Table 2

For example, if the random numbers corresponding to channels 1, 2, and 3 are 0x34, 0x67, and 0x5a, respectively, the frequencies corresponding to the three channels are 9KHZ, 12KHZ, and 8KHZ. The length of the random number table is an integer multiple of 3 to ensure each frequency modulation. You can get the correct frequency. When the random number table traversal is completed, the mobile device chooses to exit or continue to start a new round of vocalization key from the first number.

In this embodiment, since the random frequency modulation method is adopted, several channels use random frequencies, so the probability that several channels are simultaneously the same as the frequency used for the sound wave device transaction transmission is very small, thereby greatly reducing other mobile terminals in the transmission process. Access interference generated during access. If the channel is the same, the transaction communication fails, and the retransmission is used to ensure the correctness and integrity of the transmission.

In step S402, the plurality of channels respectively transmit sound wave communication access information by using a selected transmission frequency, where the sound wave communication access information includes a plurality of preferred frequencies supported by a plurality of channels of the mobile terminal;

Wherein, the selected transmission frequency broadcasts the acoustic wave communication access information.

In step S403, the plurality of channels respectively detect whether the acoustic communication response information is received;

In step S404, if yes, stop transmitting the sonic communication access information, respectively establishing a connection between the plurality of channels and a plurality of channels of the acoustic wave device, and if not, continuing to transmit the sonic communication access information;

In step S405, the supported preferred frequencies are respectively configured as the transmission frequency and the reception frequency of the several channels.

In this embodiment, the plurality of preferred frequencies supported by the respective configurations are the transmission frequencies and the reception frequencies of the plurality of channels, so that the communication link stability between the mobile terminal and the acoustic wave device is established after the mobile terminal establishes a connection with the acoustic wave device. high.

Example 7

Referring to FIG. 8, FIG. 8 is a flow chart of a preferred implementation of the method for transmitting sound waves according to an embodiment of the present invention, which is described in detail as follows:

S501, obtaining a random number table;

S502, taking a random number, and performing channel frequency configuration according to the random number;

S503. Send sound wave communication access information.

S504, whether there is a response, and if so, step S506 is performed, and if not, step S505 is performed;

S505, taking a set of random numbers and jumping to the next set of frequency points;

S506, configured as a preferred frequency band, and transacts the communication.

Example eight

Referring to FIG. 9, FIG. 9 is a structural diagram of an acoustic wave receiving apparatus according to an embodiment of the present invention. The apparatus may be operated in an acoustic wave device, and the acoustic wave device includes but is not limited to an acoustic key. For the convenience of explanation, only the parts related to the present embodiment are shown.

The sound wave receiving device comprises:

Preferably, the frequency receiving unit 61 is configured to receive the acoustic wave communication access information in a fixed frequency modulation manner, where the sound wave communication access information includes a plurality of preferred frequencies supported by the plurality of channels of the mobile terminal;

a first channel establishing unit 62, configured to establish, after receiving the sound wave communication access information, a connection between the plurality of channels and the plurality of channels of the mobile terminal;

a first preferred frequency configuration unit 63, configured to extract the plurality of preferred frequencies, and configure the plurality of preferred frequencies as a transmission frequency and a receiving frequency of the several channels;

The sound wave communication response information transmitting unit 64 is configured to send the sound wave communication response information by using the configured transmission frequency of the plurality of channels;

The sound wave communication access information shielding unit 65 is configured to close the processing thread of the sound wave communication access information to shield the sound wave communication access information.

Further, in the sound wave receiving device, the method further includes:

The acoustic wave communication response information detecting unit detects whether the connection is disconnected;

And a recovery unit that detects a processing thread that restores the sound wave communication access information after the connection is disconnected to unmask the sound wave communication access information.

Further, in the sound wave receiving device, the preferred frequency configuration unit, specifically for each of the plurality of channels, transmits sound wave communication response information at a preferred frequency among the plurality of configured preferred frequencies; or,

Each of the plurality of channels transmits acoustic wave communication response information at the configured preferred frequency.

The device provided by the embodiment of the present invention may be applied to the foregoing corresponding method embodiment. For details, refer to the description of the foregoing embodiment, and details are not described herein again.

Example nine

Referring to FIG. 10, FIG. 10 is a structural diagram of an acoustic wave transmitting apparatus according to an embodiment of the present invention, which may be operated in a mobile terminal. For the convenience of explanation, only the parts related to the present embodiment are shown.

The sound wave transmitting device includes:

The transmission frequency selection unit 71 is configured to select a transmission frequency in a random frequency modulation manner by using a plurality of channels respectively;

The sound wave communication access information transmitting unit 72 is configured to send the sound wave communication access information by using the selected transmission frequency, where the sound wave communication access information includes a plurality of preferred frequencies supported by the plurality of channels of the mobile terminal;

The sound wave communication response information detecting unit 73 is configured to detect whether the sound wave communication response information is received by the plurality of channels respectively;

The second channel establishing unit 74 is configured to: if yes, stop sending the sound wave communication access information, respectively establish a connection between the plurality of channels and the plurality of channels of the sound wave device, and if not, continue to send the sound wave communication access information;

a second preferred frequency configuration unit 75, configured to respectively configure a plurality of supported frequencies as described The transmission frequency and reception frequency of several channels.

Further, in the sound wave transmitting device, the sending frequency selecting unit specifically includes:

a random number obtaining subunit for each of the channels, obtaining a random number in a pre-stored random number table;

a frequency point selection subunit, configured to select a frequency point according to the obtained random number;

a frequency selection subunit, configured to select a frequency corresponding to the frequency point as a transmission frequency of each of the channels in a pre-stored frequency table;

The frequency table includes the frequency point and a frequency corresponding to the frequency point.

The device provided by the embodiment of the present invention may be applied to the foregoing corresponding method embodiment. For details, refer to the description of the foregoing embodiment, and details are not described herein again.

Example ten

Referring to FIG. 11, FIG. 11 is a flow chart of better information interaction between the acoustic wave receiving device and the acoustic wave transmitting device in the acoustic wave system according to the embodiment of the present invention.

The sound wave receiving device is built in the sound wave device, and the sound wave transmitting device is built in the mobile terminal. Therefore, it can be understood that the execution body of the method corresponding to the sound wave receiving device is the sound wave device, and the execution body of the method corresponding to the sound wave transmitting device is the mobile terminal.

Among them, the working principle of the acoustic wave system is as follows:

1. In the mobile terminal, several channels respectively select a transmission frequency by means of random frequency modulation;

2. In the mobile terminal, after selecting the transmission frequency, the plurality of channels respectively use the selected transmission frequency to transmit the acoustic communication access information to the acoustic wave device, and the acoustic communication access information includes several channels supported by the mobile terminal. a number of preferred frequencies;

3. In the mobile terminal, the plurality of channels respectively detect whether the acoustic wave communication response information sent by the acoustic wave device is received;

4. In the acoustic wave device, the plurality of channels respectively receive the sound wave communication access information sent by the mobile terminal in a fixed frequency modulation manner, and the sound wave communication access information includes a plurality of preferred frequencies supported by the plurality of channels of the mobile terminal;

5. In the acoustic device, after receiving the acoustic communication access information, establishing a connection between the plurality of channels and the plurality of channels of the mobile terminal;

6. In the acoustic wave device, extracting the plurality of preferred frequencies, and configuring the plurality of preferred frequencies as a transmission frequency and a receiving frequency of the several channels;

7. In the acoustic wave device, configuring a plurality of preferred frequencies supported by the mobile terminal as the transmission frequency and the receiving frequency of the plurality of channels of the mobile device, and transmitting the acoustic communication response information to the mobile terminal by using the configured transmission frequency;

8. After the mobile terminal receives the acoustic communication response information, the plurality of preferred frequencies supported by the mobile terminal are respectively configured as the transmission frequency and the reception frequency of the several channels.

After the sound wave device establishes a connection with the mobile terminal, the sound wave device and the mobile terminal set the respective channels of the sound wave system to the preferred frequency of the mobile terminal by handshaking, and the data communication between the sound wave device and the mobile terminal uses the preferred frequency for data transmission. The interference of communication conflicts when other devices are accessed during the transmission process is greatly reduced, and the correctness of the audio system communication is ensured by the retransmission mechanism.

After the acoustic system handshake is successful, the acoustic device enters the connected state to shield the acoustic communication access information until the transaction ends, to eliminate the interference of other devices transmitting the access command during the communication gap.

Wherein, using the above method, in the system shown in FIG. 1, when the mobile device 1 and the sound wave device are successfully connected, the fixed frequency is used for transaction communication, and if the mobile device 2 sends an access signal during the communication, because of the three The channels use random frequencies. Therefore, the probability that the three channels are the same as the frequency used for the transmission of the sonic equipment is very small. If the channel is the same, the transaction communication fails, and the sound wave device uses the retransmission method to ensure the correctness and integrity of the transmission. If the mobile device 2 transmits an access signal during the communication gap, since the acoustic wave device has turned off the response to the access command, the acoustic device communication is not affected.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus necessary general hardware. The program may be stored in a readable storage medium such as a random access memory, a flash memory, a read only memory, a programmable read only memory, an electrically erasable programmable memory, a register, or the like. The storage medium is located in a memory, the processor reads information in the memory, and in conjunction with its hardware, performs the methods described in various embodiments of the present invention.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. All should be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims (14)

1. A method for receiving sound waves, comprising:

   The plurality of channels of the acoustic wave device receive the acoustic wave communication access information in a fixed frequency modulation manner, and the sound wave communication access information includes a plurality of preferred frequencies supported by the plurality of channels of the mobile terminal;

   After receiving the acoustic communication access information, establishing a connection between the plurality of channels and the plurality of channels of the mobile terminal respectively;

   Extracting the plurality of preferred frequencies, and configuring the plurality of preferred frequencies as a transmission frequency and a receiving frequency of the several channels;

   The plurality of channels transmit sound wave communication response information by using a configured transmission frequency;

   The processing thread of the sound wave communication access information is turned off to shield the sound wave communication access information.
2. The method according to claim 1, wherein after the processing thread of the sound wave communication access information is closed to shield the sound wave communication access information, the method further comprises:

   Detecting whether the connection is disconnected;

   After the connection is disconnected, the processing thread of the sonic communication access information is restored to unmask the sonic communication access information.
3. The method according to claim 1, wherein the plurality of channels transmit sound wave communication response information by using a configured transmission frequency, specifically:

   Each of the plurality of channels transmits sound wave communication response information using a configured transmission frequency; or

   The preset channel of the plurality of channels transmits the acoustic wave communication response information by using the configured transmission frequency.
4. The method according to claim 1, wherein the sound wave communication access information further comprises: model information of the mobile terminal;

   After receiving the acoustic communication access information, the mapping relationship between the model information of the mobile terminal, the model information of the acoustic wave device, and the plurality of preferred frequencies is recorded.
5. A method for transmitting sound waves, comprising:

   A plurality of channels of the mobile terminal respectively select a set of sound wave frequencies as the transmission frequency;

   The plurality of channels respectively transmit sound wave communication access information by using a selected transmission frequency, where the sound wave communication access information includes a plurality of preferred frequencies supported by a plurality of channels of the mobile terminal;

   The plurality of channels respectively detect whether the acoustic communication response information is received;

   If yes, the sending of the sonic communication access information is stopped, and the connection between the plurality of channels and the sound wave device is respectively established, and if not, the following group of transmission frequencies continues to transmit the sonic communication access information;

   The several preferred frequencies supported by the respective configurations are the transmission frequencies and the reception frequencies of the several channels.
6. The method of claim 5, comprising:

   A plurality of channels of the mobile terminal respectively select a transmission frequency by means of random frequency modulation;

   The plurality of channels respectively transmit sound wave communication access information by using a selected transmission frequency, where the sound wave communication access information includes a plurality of preferred frequencies supported by a plurality of channels of the mobile terminal;

   The plurality of channels respectively detect whether the acoustic communication response information is received;

   If yes, the sending of the sound wave communication access information is stopped, and the connection between the plurality of channels and the sound wave device is respectively established, and if not, the sound wave communication access information is continuously sent;

   The several preferred frequencies supported by the respective configurations are the transmission frequencies and the reception frequencies of the several channels.
7. The method according to claim 6, wherein the plurality of channels of the mobile terminal respectively select a transmission frequency in a random frequency modulation manner, specifically:

   Each of the channels of the mobile terminal acquires a random number in a pre-stored random number table;

   Select a frequency point according to the obtained random number;

   In the pre-stored frequency table, a frequency corresponding to the frequency point is selected as a transmission frequency of each of the channels;

   The frequency table includes the frequency point and a frequency corresponding to the frequency point.
8. The method according to claim 5, wherein the sound wave communication response information further comprises: model information of the sound wave device;

   After receiving the acoustic wave communication response information, the mapping relationship between the model information of the acoustic wave device, the model information of the mobile terminal itself, and the plurality of preferred frequencies is recorded.
9. An acoustic wave receiving device, comprising:

   Preferably, the frequency receiving unit is configured to receive the acoustic wave communication access information in a fixed frequency modulation manner, where the sound wave communication access information includes a plurality of preferred frequencies supported by the plurality of channels of the mobile terminal;

   a first channel establishing unit, configured to establish, after receiving the sound wave communication access information, a connection between the plurality of channels and the plurality of channels of the mobile terminal;

   a first preferred frequency configuration unit, configured to extract the plurality of preferred frequencies, and configure the plurality of preferred frequencies as a transmission frequency and a receiving frequency of the several channels;

   The sound wave communication response information sending unit is configured to send the sound wave communication response information by using the configured transmission frequency of the plurality of channels;

   The sound wave communication access information shielding unit is configured to close the processing thread of the sound wave communication access information to shield the sound wave communication access information.
10. The acoustic wave receiving device according to claim 9, wherein the preferred frequency configuration unit is configured to transmit, in each of the plurality of channels, a preferred frequency of the plurality of preferred frequencies configured Acoustic communication response information; or,

    Acoustic communication response information is transmitted for each of the plurality of channels at the preferred frequency configured.
11. An acoustic wave transmitting device, comprising:

    a transmission frequency selection unit for selecting a set of sound wave frequencies as the transmission frequency for each of the plurality of channels;

    The sound wave communication access information sending unit is configured to send the sound wave communication access information by using the selected transmission frequency, where the sound wave communication access information includes several channel branches of the mobile terminal a number of preferred frequencies held;

    The sound wave communication response information detecting unit is configured to detect whether the sound wave communication response information is received by the plurality of channels respectively;

    a second channel establishing unit, configured to stop transmitting the sound wave communication access information, and establish a connection between the plurality of channels and a plurality of channels of the sound wave device respectively, and if not, the following group of transmitting frequencies continue to send the sound wave communication Access information

    The second preferred frequency configuration unit is configured to separately configure a plurality of preferred frequencies supported by the transmission frequency and the reception frequency of the several channels.
12. The sound wave transmitting device according to claim 11, comprising:

    a transmission frequency selection unit, configured to select a transmission frequency by using a random frequency modulation method for each of the plurality of channels;

    The sound wave communication access information sending unit is configured to send the sound wave communication access information by using the selected sending frequency, where the sound wave communication access information includes a plurality of preferred frequencies supported by the plurality of channels of the mobile terminal;

    The sound wave communication response information detecting unit is configured to detect whether the sound wave communication response information is received by the plurality of channels respectively;

    a second channel establishing unit, configured to stop transmitting the sound wave communication access information, and establish a connection between the plurality of channels and the sound wave device, and if not, continue to send the sound wave communication access information;

    The second preferred frequency configuration unit is configured to separately configure a plurality of preferred frequencies supported by the transmission frequency and the reception frequency of the several channels.
13. The sound wave transmitting device according to claim 12, wherein the sending frequency selecting unit specifically comprises:

    a random number obtaining subunit for each of the channels, obtaining a random number in a pre-stored random number table;

    a frequency point selection subunit, configured to select a frequency point according to the obtained random number;

    a frequency selection subunit, configured to select a frequency corresponding to the frequency point in a pre-stored frequency table The transmission frequency for each of the channels;

    The frequency table includes the frequency point and a frequency corresponding to the frequency point.
14. An acoustic wave system comprising the acoustic wave receiving device according to any one of claims 9 to 10 and the acoustic wave transmitting device according to any one of claims 11 to 13.

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