WO2012136112A1 - Near field communication terminal, near field communication establishment method, and data transmission method - Google Patents

Abstract

Disclosed are a near field communication terminal, a near field communication establishment method, and a data transmission method. The near field communication establishment method comprises: two communication terminal parties establishing a near field communication connection in a preset near field range by using a sound as an information carrier, and then performing data exchange through a sound channel or a near field wireless communication channel. A near field communication system comprises a master device and a slave device. The master device and the salve device each comprise a sound data processing unit and a sound communication sending unit and a sound communication receiving unit connected to the sound data processing unit respectively. Through the present invention, on the premise that the existing communication terminal is not changed, the communication terminal has a near field communication function, thereby facilitating the extensive application of the near field communication.

Description

 Near field communication terminal, near field communication establishing method and data transmission method Technical field

 The present invention relates to the field of communications, and in particular, to a near field communication terminal, a near field communication establishing method, and a data transmission method.

Background technique

With the popularity of smart terminals, there is an increasing demand for near field communication using smart terminals. Currently, the near field communication scheme applied to the smart terminal mainly includes a radio frequency SIM (Subscriber) Identification Module, User Identification Module) Card Solution and NFC (Near Field) Communication, near field communication) program. The radio frequency SIM card solution enables the smart terminal with the radio frequency SIM card to perform near field communication with the terminal having the radio frequency SIM card reading and writing function by adding the radio frequency communication function to the ordinary SIM card. The NFC solution implements near field communication between smart terminals by adding a near field communication module to the smart terminal.

Although the two schemes implement near-field communication between intelligent terminals, the radio frequency SIM card solution needs to replace the SIM card, and the NFC solution needs to modify the smart terminal. At present, the use of smart terminals and SIM cards on the market is huge. Whether it is to replace the SIM card or modify the smart terminal, it will undoubtedly increase the marketing cost and bring inconvenience to the users, which will hinder the promotion of near field communication applications.

Therefore, how to make the smart terminal have the near field communication function without changing the existing intelligent terminal is one of the problems to be solved in the field of near field communication.

technical problem

The technical problem to be solved by the present invention is to provide a near field communication terminal, a near field communication establishing method and a data transmission method, which can enable a smart terminal to have a near field communication function and promote near field communication without changing an existing intelligent terminal. Promotional application.

Technical solution

In order to solve the above technical problem, the present invention provides a method for establishing a near field communication, in which a communication terminal establishes a near field communication connection by using sound as an information carrier in a preset near field range, including: selecting a sound and audio by the first communication terminal And transmitting a message to be transmitted to the second communication terminal according to the selected sound and audio point, and the second communication terminal establishes a communication connection with the first communication terminal according to the received sound signal.

In an embodiment of the present invention, the first communication terminal selects the first audio and audio point to modulate the call information to be sent into a voice call signal and sends it out;

Receiving, by the second communication terminal, the sound call signal, obtaining a first sound audio point selected by the first communication terminal according to the sound call signal, and selecting a second sound audio point different from the first sound audio point Transmitting the response information to be sent as a voice response signal to the first communication terminal;

The first communication terminal receives the voice response signal on the second sound audio point, and the two parties establish communication.

In an embodiment of the present invention, the first communication terminal and the second communication terminal respectively select the audio and audio points to modulate the respective call information to be sent into a voice call signal, and the selected sounds are selected. Different audio points;

After receiving the voice call signal sent by the other party, the first communication terminal and the second communication terminal modulate the respective response information into a voice response signal and send the signal to the other party;

After the first communication terminal and the second communication terminal respectively receive the voice response signals sent by the other party, the two establish a communication connection.

In an embodiment of the present invention, the specific process of establishing a communication connection between the first communication terminal and the second communication terminal includes:

The first communication terminal selects the first audio and audio point to modulate the first call information to be sent into a first voice call signal to be sent out;

The second communication terminal selects the second audio audio point to modulate the second call information to be sent into a second voice call signal to be sent out;

The first communication terminal obtains the second sound audio point according to the received second sound call signal, and determines whether the first sound and audio point is the same as the second sound and audio point, and if so, reselects the first Acquiring an audio point to modulate the first call information into a first voice call signal; otherwise, modulating the second response information into a second voice response signal according to the first sound audio point;

The second communication terminal obtains the first sound audio point according to the received first sound call signal, and determines whether the first sound and audio point is the same as the second sound and audio point, and if so, reselects the first a second audio point, modulating the second call information into a second voice call signal; otherwise, modulating the first response information into a first voice response signal according to the second audio point;

The first communication terminal receives the first sound response signal on the second sound audio point, and the second communication terminal receives the second sound response signal on the first sound audio point.

In an embodiment of the present invention, the specific process of establishing a communication connection between the first communication terminal and the second communication terminal includes:

The first communication terminal selects all the audio and audio points in the first set of acoustic audio points to modulate the first call information to be sent into a first voice call signal to be sent out;

The second communication terminal selects all the audio and audio points in the second set of audio and audio points to modulate the second call information to be sent into a second voice call signal to be sent out;

The first communication terminal determines, according to the received second sound call signal, whether the sound and audio points used for receiving the second sound call signals are the same as the sound and audio points included in the first set of sound and audio points, and if so, The first communication terminal reselects the first sound audio point set to transmit the first sound call signal; otherwise, the first communication terminal uses a sound different from the first sound audio point set from the received second sound call signal Selecting an audio point B as a transmission frequency point in the audio point, and modulating the second response message to be transmitted into a second voice response signal according to the sound audio point B to be sent to the second communication terminal;

The second communication terminal obtains the sound and audio points used by the received first voice call signals according to the received first voice call signal, and determines the sound and audio points used by the first voice call signals and the first Whether the acoustic audio points included in the set of two audio points are the same, if yes, the second communication terminal reselects the second set of audio points to transmit the second sound call signal; otherwise, the second communication terminal is from the second Selecting an audio point A as a transmission frequency point among the sound audio points different from the second sound audio point set used by the sound calling signal, and modulating the first response message to be transmitted into the first sound response according to the sound audio point A Sending a signal to the first communication terminal;

The first communication terminal receives the first sound response signal on the sound audio point A, The second communication terminal receives the second voice response signal on the sound audio point B, and the communication parties establish a communication connection.

In an embodiment of the present invention, before the first communication terminal modulates the second response message to be sent according to the audio and audio point B, the second voice response signal is sent to the second communication terminal, and further includes:

Transmitting, by the first communication terminal, the first call information into a first voice call signal according to the audio and audio point B;

Before the second communication terminal modulates the first response message to be sent according to the audio and audio point A, the first voice response signal is sent to the first communication terminal, and further includes:

The second communication terminal remodulates the second call information into a second voice call signal according to the audio and audio point A.

In one embodiment of the invention, the acoustic audio points are within a range of audio segments that can be played by both communication terminals.

In an embodiment of the invention, the audio segment includes at least two sub-bands, and the acoustic audio points are intermediate frequency points of each sub-band included in the audio segment.

The present invention also provides a data transmission method in which a communication terminal performs data exchange through a sound channel and/or a near field wireless communication channel after establishing a communication connection according to the method as described above.

The invention also provides a data transmission method, the first communication terminal selects an audio and audio point, and the original information to be transmitted is modulated into a sound signal by using the selected sound and audio point, and then sent out;

The second communication terminal receives and demodulates the sound signal on the sound audio point to obtain the original information.

The present invention also provides a near field communication terminal comprising a sound data processing unit, a sound communication transmitting unit and a sound communication receiving unit respectively connected to the sound data processing unit, wherein:

The sound data processing unit includes an audio selection module and a signal processing module connected to each other, the audio selection module is configured to select an acoustic audio point according to a preset rule, and the signal processing module is configured to select a sound according to the audio selection module. The audio point converts the information to be transmitted into a sound signal and sends the sound signal to the sound communication sending unit, and is further configured to process the sound signal collected by the sound communication receiving unit to obtain the original information;

The voice communication sending unit is configured to send the voice signal that is transmitted by the voice data processing unit;

The sound communication receiving unit is configured to collect a sound signal on the set sound and sound point.

In an embodiment of the invention, The sound data processing unit further includes a judging module connected to the signal processing module, and the signal processing module is further configured to demodulate the sound signal collected by the sound communication receiving unit to obtain an acoustic audio point used by the sound signal. The determining module is configured to determine whether the sound processing audio point is demodulated by the signal processing module to be the same as the sound audio point selected by the audio selection module, and send the determination result to the audio selection module, the audio The selection module is further configured to determine, according to the determination result, whether to reselect the acoustic audio point.

In an embodiment of the present invention, the audio selection module determines, according to the determination result, whether to reselect the audio and audio points, including:

When the determination result is the same, the audio selection module reselects the acoustic audio point according to the preset rule and sends the sound to the signal processing module.

In an embodiment of the invention, the near field communication terminal further includes a wireless communication unit connected to the sound data processing unit for transmitting and receiving radio wave modulation information within a set distance.

In an embodiment of the invention, the near field communication terminal further includes a switch unit connected to the sound data processing unit, the switch unit for controlling an operating state of the sound data processing unit.

In an embodiment of the invention, the voice communication transmitting unit is a speaker.

In an embodiment of the invention, the voice communication receiving unit is a microphone.

In an embodiment of the invention, the near field communication terminal is a mobile phone, a notebook computer, a tablet computer, a self-service information machine, a broadcast terminal, a verification terminal or a POS terminal.

The near field communication establishing method provided by the present invention can modulate the information to be transmitted into a sound signal to the communication terminal at the opposite end through the selected sound and sound point in a preset near field range, so as to establish a communication connection with the opposite end. The establishment of near field communication is simple and convenient, and is more convenient for users to use, thereby improving the satisfaction of the user experience.

Further, the voice communication transmitting unit and the voice communication receiving unit included in the approach communication device of the communication terminal of the present invention may be a speaker and a microphone provided by the communication terminal. For example, when the communication terminal is a smart phone or a notebook, the smart communication device may be a smart phone. Or the speaker and microphone of the notebook, so that the smart terminal can have the near field communication function without changing the hardware structure of the existing intelligent terminal, which is more conducive to promoting the promotion and application of the near field communication, and saving the transformation cost of the near field communication application.

Beneficial effect

The beneficial effects of the technical solution are as follows:

First, the technical solution is especially applied in the field of near field communication, and there is no need to change the existing intelligent terminal and its associated independent hardware module. For example, when applied to a mobile phone, there is no need to replace or modify the mobile phone, and there is no need to replace or modify the SIM card.

Secondly, when the technical solution is applied to communication between intelligent terminals, the smart terminal (mobile phone, etc.) can quickly establish a connection and perform data only by installing a software module without replacing the existing intelligent terminal. exchange. For a small amount of data, such as exchange of business card information, phone book, web address, etc., the data can be exchanged directly through the sound function module (microphone and speaker) provided by the smart terminal; for a large amount of data, such as video files, music files, etc., The sound function module (microphone and speaker) that it has has established a communication connection, and then exchanges data with its own fast wireless communication function module such as Bluetooth and WiFi.

Third, when the technical solution is applied to the smart terminal and the self-service terminal device having the background connection function, the smart terminal only needs to install one software module, and can establish a fast connection and exchange data with the terminal device with the voice communication function. At the same time, the terminal device can communicate with the background through wireless or wired manner, so that the background can conveniently provide information services and the like for the smart terminal device through the terminal device. If the software module is installed in the mobile phone, the mobile phone can communicate with the self-service information machine, the broadcast terminal, the verification terminal, the POS terminal, etc., which have the voice communication function, and realize the downloading and verification of the information such as the electronic coupon and the electronic ticket. Use, etc., can even be used for electronic payments.

The above description is only a preferred embodiment of the present technical solution, and is not intended to limit the technical solutions. Any modifications, equivalent replacements, improvements, etc., which are made within the spirit and principles of the technical solutions, should be included in the present disclosure. Within the scope of protection of the technical solution.

DRAWINGS

1 is a schematic structural diagram of a near field communication terminal according to an embodiment of the present invention;

2 is a schematic structural diagram of a sound data processing unit in the near field communication terminal shown in FIG. 1;

FIG. 3 is a schematic structural diagram of a near field communication system according to another embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiments of the invention

The technical solution relates to a functional module that can be set in an intelligent communication terminal, so that a near field communication connection can be established between the communication terminals and data exchange can be performed. The function module can be specifically implemented by software or combination of software and hardware, and the near field communication connection and data exchange can be established through the finger speaker and the microphone provided by the communication terminal. The function module can modulate the information to be transmitted by the communication terminal into a sound signal, and control the speaker of the communication terminal or other voice communication transmitting device to emit a modulated sound signal, and the sound signal carries the original information to be sent by the sender. The function module can also collect the surrounding sound signals through the microphone or other voice communication receiving terminal of the communication terminal, and control the communication terminal to demodulate the collected sound signals to restore the original information sent by the sender. The above functional module and the voice communication transmitting device and the voice communication receiving device already provided by the communication terminal constitute a new near field communication terminal, and the near field communication terminal can establish a near field communication connection for the information carrier, and then further pass the sound. Channels or other wireless communication channels (such as Bluetooth wireless communication channels, WiFi wireless communication channels, etc.) perform data exchange. It should be understood that, according to actual conditions, sound channels and other wireless communication channels may also be selected for exchange of related data.

On the basis of this, the technical solution also proposes a near field communication system, which includes a master device and a slave device, and the above-mentioned near field communication terminal is used in both the master device and the slave device, and may further include other wireless communication units (specifically, A Bluetooth wireless communication module, a WiFi wireless communication module, etc., the wireless communication unit can provide a near field wireless communication channel for auxiliary communication, especially large data volume communication. The functional modules are installed on the master device and the slave device. In particular, the near field communication system of the present technical solution may further include a background, and the background may provide information services and the like for the slave device by using the master device.

The technical solution can establish a near field communication connection and data exchange using sound as an information carrier by means of the voice communication transmitting device and the voice communication receiving device already provided by the communication terminal, and does not need to change or replace the existing intelligence. Terminal and any hardware module applied to the smart terminal.

The principles and features of the present technical solution are described in the following with reference to the accompanying drawings, which are only used to explain the technical solutions, and are not intended to limit the scope of the technical solutions.

Referring to FIG. 1, a near field communication terminal 100 according to an embodiment of the present invention includes a sound data processing unit 101 and a voice communication transmitting unit 102 and a voice communication receiving unit 103 respectively connected to the sound data processing unit 101, wherein the voice communication is performed. The sending unit 102 is configured to send the to-be-sent information of the sound signal modulated by the sound data processing unit 101, and the sound communication receiving unit 103 is configured to collect the sound signal, that is, receive the sound signal carrying the original information to be transmitted; the sound data processing unit 101 is used to Corresponding audio and audio points are selected according to a preset rule, and the information to be transmitted is modulated into a sound signal according to the selected sound and audio point and sent to the sound communication transmitting unit, and the original information is demodulated from the sound signal collected by the sound communication receiving unit 103. . Thereby, the near field communication terminal 100 can transmit and receive voice modulation information, and is an information transmitting and receiving apparatus capable of performing near field communication using voice as an information carrier. In actual use, the carrier of the communication data, the modulation mode of the sound, the transmission power, the receiving sensitivity, and the like can be adjusted so that the communication distance satisfies the set requirement.

The voice communication transmitting unit 102 may be a speaker or other voice communication transmitting device that the near field communication terminal 100 itself has, and the voice communication receiving unit 103 may be a microphone or other voice communication receiving device already provided by the near field communication terminal 100. The voice communication transmitting unit 102 and the voice communication receiving unit 103 provide a voice communication channel for near field communication.

Referring to FIG. 2, when the sound data processing unit 101 is implemented by software, it can be run by the central processing unit CPU of the near field communication terminal 100, and the sound data processing unit 101 can be implemented based on an independent operation platform, or can be based on a specific operation platform. The implementation may specifically include an audio selection module and a signal processing module that are connected to each other. The audio selection module is configured to select an acoustic audio point according to a preset rule, and the preset rule may specifically select a sound audio point randomly, or select a sound audio point in a direction. The signal processing module is configured to convert the information to be sent into a sound signal according to the sound and audio point selected by the audio selection module, and send the sound signal to the sound communication sending unit, and also process the sound signal collected by the sound communication receiving unit to obtain the original information.

The sound data processing unit 101 in this embodiment may further include a determination module connected to the signal processing module, and the signal processing module is further configured to demodulate the sound signal collected by the sound communication receiving unit to obtain an audio and audio point used by the sound signal. The judging module is configured to determine whether the audio processing point is demodulated by the signal processing module, and whether the sound and audio points selected by the audio selection module are the same, and the judgment result is sent to the audio selection module, which may be transmitted to the audio selection module through the signal processing module, or The audio selection module is directly connected to the audio selection module, and the audio selection module is further configured to determine whether to reselect the audio and audio points and transmit the signal to the signal processing module according to the determination result, as follows:

When the judgment result received by the audio selection mode is the same, it indicates that the audio point selected by the local end for transmitting the information is the same as the audio point selected by the opposite end, so the audio selection module needs to reselect the audio and audio point according to the preset rule. The signal processing module resends the corresponding information.

The near field communication terminal 100 may further include a switch unit connected to the sound data processing unit 101 for controlling the operation state of the sound data processing unit 101, specifically, controlling the opening and closing of the sound data processing unit 101. When the user wants to use the above functions of the terminal, the switching unit controls the opening and closing of the sound data processing unit 101 to control the opening and closing of the communication function of the terminal. That is, the sound data processing unit 101 is turned off, and the near field communication terminal 100 stops the operation of the near field communication. When the sound data processing unit 101 is turned on, the near field communication terminal 100 can perform the work of establishing the near field communication connection and the data transmission. It should be noted that the voice communication transmitting unit and the voice communication receiving unit of the near field communication terminal 100 are both devices existing in the terminal itself, so that when the sound data processing unit is turned off, the voice communication transmitting unit and the voice communication receiving unit can still perform Their original function in the terminal.

As can be seen from the above, the near field communication terminal 100 of the present invention can install a sound data processing unit that can be implemented by a program by means of a voice communication transmitting device and a voice communication receiving device that are already provided by itself, and can establish a sound with an information carrier. Field communication connection and data exchange, without changing or replacing existing intelligent terminals and any hardware modules applied on the intelligent terminals, is conducive to promoting the promotion and application of near field communication and reducing the transformation cost. The near field communication terminal 100 in this embodiment may specifically be a mobile phone, a notebook computer, a tablet computer, a self-service information machine, a broadcast terminal, a verification terminal, or a POS terminal.

The technical solution also proposes a near field communication system. 3 is a structural diagram of a near field communication system 10 in an embodiment of the present technical solution. In this embodiment, the near field communication system 10 includes a master device 300, a slave device 400, and a background 500. The master device 300 and the slave device 400 are wirelessly configured. Connected, in particular, the near field communication connection can be established by using the sound as the carrier. The main device 300 and the background 500 are connected by wire or wirelessly. When the main device 300 and the background 500 are connected by wire, the main device 300 and the background 500 each include a wired communication unit. When the main device 300 and the background 500 are connected by wireless. Both the master device 300 and the background 500 include a wireless communication unit. The background 500 can provide information services for the slave device 400 through the master device 300. It should be noted that the background 500 in this embodiment is not limited to being connected to the main device 300. According to the actual situation, the slave device 400 can also be connected to the corresponding background 500, and the background 500 and the slave device 400 and the master device are connected. The connection between 300 is also not limited to the one-to-one connection, and both the master device 300 and the slave device 400 can employ the above-described near field communication terminal 100.

In other embodiments of the technical solution, the background 500 may not be included in the near field communication system.

In this embodiment, the working process of the primary communication terminal is the first communication terminal, the secondary device is the second communication terminal, and the near field communication system does not include the background is as follows:

Step one, starting the sound data processing unit 101 installed on the first communication terminal and from the second communication terminal;

The sound data processing unit 101 can be activated in the following manner:

Method 1:

The sound data processing unit 101 installed on the first communication terminal and the second communication terminal is manually started.

For example, when the first communication terminal and the second communication terminal are mobile phones, an icon of the sound data processing unit 101 may be set on the screen of the mobile phone. When the icon is clicked, the sound data processing unit 101 is activated, and the mobile phones of the master and the slave are passed. The respective speakers and microphones transmit and receive sound data information.

Method 2:

The first communication terminal and the second communication terminal are intentionally touched, thereby activating the sound data processing unit 101. The premise of this method is that a function module activated by the collision trigger sound data processing unit 101 is provided in both the first communication terminal and the second communication terminal.

For example, when the first communication terminal and the second communication terminal are mobile phones, and the function modules activated by the collision trigger sound data processing unit 101 are provided in the mobile phones of both the master and the slave, an intentional collision occurs between the mobile phones, thereby starting the sound data. The processing unit 101 transmits and receives sound data information through the built-in speaker and microphone of the mobile phones of both the master and the slave.

The above startup manner can be implemented by the first communication terminal and the switch unit provided on the second communication terminal to control the sound data processing unit 101, and the specific implementation of the switch unit can be realized by an infrared sensor, or by an acceleration sensor or by the most common The case switch is implemented.

Step 2: The first communication terminal and the second communication terminal establish a near field communication connection by using the voice as the information carrier;

The frequency band of the sound carrier can be limited to the audio segment that can be played by the voice communication sending unit of the master device and the slave device, that is, each sound audio point is within the range of the audio segment that can be played by the voice communication sending unit of the master device and the slave device. If the frequency band is W, and the frequency band is divided into N sub-bands in total, the bandwidth of each sub-band is W/N, and the frequency point in the middle of each sub-band is taken as the acoustic audio point, and the frequency point can be expressed as fi, i= 1,2,3,...N. When a communication connection is established by using sound as an information carrier in the near field range of both communication devices, one of the devices may first select an audio and audio point, and then modulate the information to be transmitted into sound information according to the selected sound and audio point and send it to another A device of one party establishes a communication connection with the device; the specific implementation manner may be one of the following methods, but is not limited to the following methods:

(1) Master-slave response connection method:

The first communication terminal and the second communication terminal both turn on the voice communication function, and the first communication terminal is an active communication party, and the second communication terminal is a passive communication party. The first communication terminal selects a sending function, and the information to be sent includes an identifier indicating “need to communicate”, for example, when transmitting in a frame, by setting a preamble of the frame, and randomly or directionally selecting an acoustic audio point. Fi, i = 1, 2, 3, ... N as a carrier, the information to be transmitted is modulated with a selected frequency point to form an audio signal Ft, t = 1, 2, 3, ..., N, called a voice call signal And then broadcast to the surrounding environment through its own speaker, the second communication terminal collects an external sound signal through its own microphone, and receives the sound call signal sent by the first communication terminal is the sound and audio point selected at the first communication terminal. , i = 1, 2, 3, ... N, the audio data processing unit 101 of the second communication terminal processes the signals Ft, t = 1, 2, 3, ... N (specifically including demodulation, decoding, etc.) The original information sent by the first communication terminal, that is, communication is required. At this time, the second communication terminal also selects another sound and audio point gi, i=1, 2 different from the sound and audio point selected by the first communication terminal according to the above rule. 3,...N as a carrier, sending a "communicable" response No., at this time, the information to be transmitted of the second communication terminal includes an identifier of “communicable”, and the second communication terminal uses the selected acoustic audio point gi, i=1, 2, 3, . . . Modulated as a sound signal, which is called a voice response signal and sent to the first communication terminal. After receiving the voice response signal, the first communication party processes the voice response signal to obtain the "communicable" information sent by the second communication terminal, and the two parties establish Starting from the communication link, the frequency of the first communication terminal is its transmission path, and the gi frequency is its receiving path. For the second communication terminal, the gi frequency is its transmission path, and the fi frequency is its receiving path.

In addition to implementing the communication connection by using the above-mentioned master-slave response connection mode, both parties can be configured to implement a communication connection for the active communication party. At this time, the information to be transmitted of the first communication terminal and the second communication terminal both include call information and response information, and is worthwhile. It is noted that the information to be sent in this embodiment may further include other messages for establishing communication or transmission data, such as related setting parameters or communication parameters, etc.; the first communication terminal and the second communication terminal respectively select the audio and audio points to be treated. The transmitted call information is modulated and sent to the other party as a voice call signal. It is worth noting that the sound and audio points selected by the two active communication parties are different sound and audio points; and after receiving the voice call signal sent by the other party, the respective response information is received. The modulated response signal is sent to the other party; the communication parties establish a communication connection after receiving the voice response signal sent by the other party, and the specific manner includes the following two implementation manners.

(2) Main main single frequency point connection method

The first communication terminal and the second communication terminal both turn on the voice communication function, and both are active communication parties, and the first communication terminal and the second communication terminal respectively select the sound and audio points fi, i=1, 2, 3,... N, gi, i = 1, 2, 3, ... N as carriers, the first communication terminal modulates the first call information to be transmitted with the selected acoustic audio points fi, i = 1, 2, 3, ... Forming a first sound call signal Ft, t=1, 2, 3, ..., N, the second communication terminal modulates the second call information to be transmitted with the selected acoustic audio points gi, i = 1, 2, 3, ... N to form a second The voice call signals Gt, t = 1, 2, 3, ..., N, and then the first communication terminal and the second communication terminal keep the first voice call signal and the second voice call signal to the surrounding environment through respective voice communication transmitting units Broadcasting, when both parties of the communication receive an external sound signal through their respective voice communication receiving units (it can be understood that, at this time, the first communication terminal must be received at the sound audio point gi, i=1, 2, 3, . . . To the second voice call signal, and the second communication terminal should receive the first voice call signal at the audio and audio points fi, i = 1, 2, 3, ..., N, and in the respective sound data processing unit 101 For the signals Gt, t = 1, 2, 3, ... N and Ft, t=1, 2, 3, ... N are processed to obtain original second call information and first call information, and respectively stop transmitting the first call information and the second call information, and then the first communication terminal continues to use The voice transmission frequency fi, i=1, 2, 3, . . . N, which is selected by itself, modulates the second response message to be transmitted into a second voice response signal, and the second communication terminal continues to transmit the frequency with the voice selected by itself. Point gi, i=1, 2, 3, ... N modulate the first response message to be transmitted into a first voice response signal, when the first communication terminal is at the audio and audio point gi, i = 1, 2, 3 , N receives the first voice response signal, and after the second communication terminal receives the second voice response signal at the audio and audio points fi, i=1, 2, 3, . . . N, the communication parties respectively receive the response signal transmitted by the other party. , established a communication link: The fi frequency is the transmission path of the first communication terminal, the gi frequency is the reception path of the first communication terminal; the gi frequency is the transmission path of the second communication terminal, and the fi frequency is the reception path of the second communication terminal.

It is worth noting that when the first communication terminal and the second communication terminal randomly or directionalally select the sound and audio points, the selected sound and sound audio points may be the same, thereby causing communication establishment failure of the communication parties, so in order to avoid this situation The first communication terminal in this embodiment modulates the second response message to be transmitted to the second communication terminal by using the audio and audio points fi, i=1, 2, 3, . . . The following may further include the following determining step: the first communication terminal determines the acoustic audio points gi, i=1, 2, 3, . . . N and the audio and audio points used for receiving the second sound call signal. Whether fi, i=1, 2, 3, ... N are the same; if not, modulating the second response message to be transmitted into the second voice response signal by using the audio frequency points fi, i=1, 2, 3, ... To the second communication terminal; otherwise, the first communication terminal reselects the acoustic audio point fj to send the first voice call message.

After the first active party performs the above-mentioned judging process, the second communication terminal can theoretically ensure that the audio and audio points finally selected by the two parties are different, but the synchronization of the two parties is improved and the reliability is improved. Sexuality and connection efficiency, the second communication terminal in this embodiment modulates the first response message to be transmitted into the first voice response signal by using the audio and audio points gi, i=1, 2, 3, . . . The communication terminal may further include: the second communication terminal determines the acoustic audio points fi, i=1, 2, 3, . . . N and the audio and audio points used for the received first sound call signal. Whether gi, i=1, 2, 3, ... N are the same; if not, modulating the first response message to be transmitted into the first voice response signal by using the acoustic audio points gi, i=1, 2, 3, ... N To the first communication terminal; otherwise, the second communication terminal reselects the acoustic audio point gj to transmit the second voice call signal.

(3) Main and main multi-frequency point connection

Both the first communication terminal and the second communication terminal turn on the voice communication function, and both are active communication parties, and the first communication terminal selects its own transmission frequency point set {f1, f2, F3,...,fM}, M<N, the first call information to be transmitted is modulated at the selected frequency points {f1, f2, f3, ..., fM}, M<N to form a first voice call. Signal {F1, F2, F3,...,FM}, M<N is sent out. The specific transmission mode can be in the form of broadcast. Similarly, the second communication terminal also selects the transmission frequency set {g1, g2, G3,...,gM},M<N, the second call information to be transmitted is modulated on the selected frequency points {g1, g2, g3, ..., gM}, M<N to form a second voice call. Signal {G1, G2, G3,...,GM}, M<N is sent out. When the first communication terminal receives the second voice call signal, the received audio and audio points of each received second voice call signal may be obtained, and one sound and sound point B is selected as the transmission frequency point of the first communication terminal, and then The first communication terminal modulates the second response message to be transmitted with the acoustic audio point B as a second sound response signal, and transmits it on the acoustic audio point B. When the second communication terminal receives the first sound call signal, the sound audio point used by each received first sound call signal may be obtained, and one sound audio point A is selected as the transmission frequency point of the second communication terminal, and then The second communication terminal modulates the first response message to be transmitted with the acoustic audio point A as the first sound response signal, and transmits it on the sound audio point A. The first communication terminal receives the first sound response signal on the sound audio point A, After the second communication terminal receives the second voice response signal on the sound and audio point B, the two parties establish a communication connection.

It should be noted that when the first communication terminal and the second communication terminal randomly or directionalally select the set of sound and audio points, the frequency points of the selected sound and audio point sets may be completely the same, thereby causing communication establishment failure of the communication parties. Therefore, in order to avoid this, the first communication terminal and the second communication terminal may further include the following process when selecting the audio and audio point B and the audio and audio point A: the process of selecting the audio and audio point B by the first communication terminal includes:

The first communication terminal determines that the acoustic audio point of each second sound call signal is received and the sound audio point {f1, f2 included in the first sound audio point set, F3,...,fM}, whether M<N is completely the same, if yes, the first communication terminal reselects the first sound audio point set to transmit the first sound call signal; otherwise, the first communication terminal uses from each second sound call signal One of the sound and audio points different from the first sound audio point set is selected as the sound audio point B. When the sound audio point B is selected, an optimal channel may be reserved or randomly selected according to the channel quality, such as the first communication terminal. The best channel gi, i = 1, 2, 3, ... M is obtained as the transmission channel.

In order to ensure that the second communication terminal is synchronized with the first communication terminal, the second communication terminal may also select the audio and audio point A by the same selection process as described above, as follows:

The second communication terminal determines that the acoustic audio point {g1, g2 included in the sound audio point of each first sound call signal and the second sound audio point set are received, G3, . . . , gM}, whether M<N is the same, if yes, the second communication terminal reselects the second set of audio points to transmit the second voice call signal; otherwise, the second communication terminal uses the second voice call signal from each One of the acoustic audio points different from the second audio audio point set is selected as the acoustic audio point A. When the acoustic audio point A is selected, an optimal channel may be reserved or randomly selected according to the channel quality, such as the second communication terminal. The best channel gi, i = 1, 2, 3, ... M is used as the transmission channel.

After the first communication terminal and the second communication terminal select their transmission frequency points, in order to further verify the validity of the selected transmission frequency point, the first communication terminal modulates the second response message to be transmitted according to the acoustic audio point B to Transmitting a second voice response signal to the second communication terminal, and the second communication terminal modulates the first response message to be sent according to the sound audio point A to a first voice response signal before transmitting the first voice response signal to the first communication terminal It can also include the following steps:

Transmitting, by the first communication terminal, the first call information, that is, the first call information, to the second communication terminal according to the selected sound audio point B;

Transmitting, by the second communication terminal, the second call information to the second voice call signal according to the sound and audio point A;

The first communication terminal and the second communication terminal respectively receive the second sound call signal and the first sound call signal on the sound audio point A and the sound audio point B, respectively, and then use the respective sound audio point B and the sound audio point. A transmits the second voice response information and the first voice response information, respectively.

The first communication terminal receives the first voice response signal on the sound audio point A, and after the second communication terminal receives the second voice response signal on the sound audio point B, the two parties establish a communication connection.

Step 3: The first communication terminal and the second communication terminal perform near field data exchange;

In this step, the channel for near field data exchange may be a voice communication channel provided by the near field communication terminal 100, or may be a near field wireless communication channel provided by the near field communication terminal 100, such as a fast wireless communication channel such as Bluetooth or WiFi.

It should be noted that in other embodiments, the sound may be directly used as a carrier for the interaction of related data, instead of establishing a communication connection on both sides of the communication according to the above method, as follows:

Both the first communication terminal and the second communication terminal turn on the voice communication function, the first communication terminal is an active communication party, and the second communication terminal is a passive communication party. The first communication terminal and the selection transmission function, and randomly or directionally select a sound and audio point fi, i=1, 2, 3, ... N as a carrier, and use the information that the user wants to interact with Modulating, and transmitting, the information is: Ft, t=1, 2, 3, ... N, and the second communication terminal selects the receiving function, and receives the sound signal Ft, t=1, 2 sent by the first communication terminal, After 3,...N, the control list is used to process Ft, t=1, 2, 3,...N. The original information sent by the first communication terminal.

In step four, the first communication terminal and the second communication terminal disconnect the near field communication connection.

In this embodiment, the working process of the near field communication system including the background 500 is only increased by one step 5 compared with the working process of the near field communication system not including the background 500:

Step 5: The first communication terminal establishes a communication connection with the background 500 and performs data exchange.

The position of the step 5 may be after step two above and before step three.

The near field communication system of the technical solution can establish a near field communication connection and data exchange with sound as an information carrier, and does not need to change or replace an existing intelligent terminal and any hardware module applied on the smart terminal, thereby facilitating promotion of the near field. Promotion and application of communication.

The technical solution also proposes a method for data transmission in near field communication, in which the communication terminals establish a near field communication connection with sound as an information carrier in a preset near field range, and then pass the sound channel and/or near field wireless. The communication channel performs data exchange.

Wherein, the specific manner in which the communication terminal establishes the near field communication connection by using the sound as the information carrier in the preset near field range can adopt the foregoing four modes (master-slave direct connection mode, master-slave response connection mode, main main single frequency) One of the point connection method and the main master multi-frequency point connection method, but is not limited to the four methods.

Industrial applicability

Sequence table free content

Claims (17)

1. A method for establishing a near field communication, in which a communication terminal establishes a near field communication connection with a sound as an information carrier within a preset near field range, including: the first communication terminal selects an audio and audio point, and the audio and video points are to be selected according to the selected The transmission information modulation is transmitted to the second communication terminal as a sound signal, and the second communication terminal establishes a communication connection with the first communication terminal according to the received sound signal.
2.  A near field communication establishing method according to claim 1, wherein

   The first communication terminal selects the first audio and audio point to modulate the call information to be sent into a voice call signal and sends it out;

   Receiving, by the second communication terminal, the sound call signal, obtaining a first sound audio point selected by the first communication terminal according to the sound call signal, and selecting a second sound audio point different from the first sound audio point Transmitting the response information to be sent as a voice response signal to the first communication terminal;

   The first communication terminal receives the voice response signal on the second sound audio point, and the two parties establish communication.
3.  A near field communication establishing method according to claim 1, wherein

   The first communication terminal And the second communication terminal respectively selects the audio and audio points to modulate the respective call information to be sent into a voice call signal, and the selected sound and audio points are different;

   After receiving the voice call signal sent by the other party, the first communication terminal and the second communication terminal modulate the respective response information into a voice response signal and send the signal to the other party;

   After the first communication terminal and the second communication terminal respectively receive the voice response signals sent by the other party, the two establish a communication connection.
4. The method for establishing a near field communication according to claim 3, wherein the specific process of establishing a communication connection between the first communication terminal and the second communication terminal comprises:

   The first communication terminal selects the first audio and audio point to modulate the first call information to be sent into a first voice call signal to be sent out;

   The second communication terminal selects the second audio audio point to modulate the second call information to be sent into a second voice call signal to be sent out;

   The first communication terminal obtains the second sound audio point according to the received second sound call signal, and determines whether the first sound and audio point is the same as the second sound and audio point, and if so, reselects the first Acquiring an audio point to modulate the first call information into a first voice call signal; otherwise, modulating the second response information into a second voice response signal according to the first sound audio point;

   The second communication terminal obtains the first sound audio point according to the received first sound call signal, and determines whether the first sound and audio point is the same as the second sound and audio point, and if so, reselects the first a second audio point, modulating the second call information into a second voice call signal; otherwise, modulating the first response information into a first voice response signal according to the second audio point;

   The first communication terminal receives the first sound response signal on the second sound audio point, and the second communication terminal receives the second sound response signal on the first sound audio point.
5.  A near field communication establishing method according to claim 3, characterized in that The specific process of establishing a communication connection between the first communication terminal and the second communication terminal includes:

   Said The first communication terminal selects all the audio and audio points in the first set of audio and audio points to modulate the first call information to be sent into a first voice call signal to be sent out;

   The second communication terminal selects all the audio and audio points in the second set of audio and audio points to modulate the second call information to be sent into a second voice call signal to be sent out;

   Said The first communication terminal determines, according to the received second sound call signal, whether the sound and audio points used by the received second sound call signals are the same as the sound and audio points included in the first set of sound and audio points, and if so, The first communication terminal reselects the first sound audio point set to transmit the first sound call signal; otherwise, the first communication terminal uses a different sound and audio point from the received second sound call signal than the first sound audio point set Selecting an audio point B as a transmission frequency point, and modulating the second response message to be transmitted into a second voice response signal according to the sound and audio point B to be sent to the second communication terminal;

   Said The second communication terminal obtains the sound and audio points used by the received first sound call signals according to the received first sound call signal, and determines the sound and audio points and the second sound used for receiving the first sound call signals. Whether the audio and audio points included in the audio point set are the same, if yes, the second communication terminal reselects the second sound audio point set to transmit the second sound call signal; otherwise, the second communication terminal calls from each second voice Selecting an audio point A as a transmission frequency point among the sound and audio points different from the second sound audio point set, and modulating the first response message to be transmitted into the first sound response signal according to the sound audio point A Giving the first communication terminal;

   Receiving, by the first communication terminal, the first sound response signal on the sound and audio point A, The second communication terminal receives the second voice response signal on the sound audio point B, and the communication parties establish a communication connection.
6.  A near field communication establishing method according to claim 5, wherein said first communication terminal Before the second audio response signal is modulated to be sent to the second communication terminal according to the audio and audio point B, the method further includes:

   Transmitting, by the first communication terminal, the first call information into a first voice call signal according to the audio and audio point B;

   The second communication terminal The modulating the first response message to be sent according to the audio and audio point A to the first voice response signal before transmitting to the first communication terminal further includes:

   The second communication terminal remodulates the second call information into a second voice call signal according to the audio and audio point A.
7.  Near field communication establishing method according to claim The sound audio point is within a range of audio segments that can be played by both communication terminals.
8.  Near field communication establishing method according to claim 7 The audio segment includes at least two sub-bands, and the acoustic audio points are intermediate frequency points of the sub-bands included in the audio segment.
9. A data transmission method in which a communication terminal performs data exchange through a sound channel and/or a near field wireless communication channel after establishing a communication connection according to the method of any one of claims 1-8.
10. A data transmission method, the first communication terminal selects an audio and audio point, and the original information to be transmitted is modulated into a sound signal by using the selected sound and audio point, and then sent out;

    The second communication terminal receives and demodulates the sound signal on the sound audio point to obtain the original information.
11. A near field communication terminal includes a sound data processing unit, a sound communication transmitting unit and a sound communication receiving unit respectively connected to the sound data processing unit, wherein:

    The sound data processing unit includes an audio selection module and a signal processing module connected to each other, the audio selection module is configured to select an acoustic audio point according to a preset rule, and the signal processing module is configured to select a sound according to the audio selection module. The audio point converts the information to be transmitted into a sound signal and sends the sound signal to the sound communication sending unit, and is further configured to process the sound signal collected by the sound communication receiving unit to obtain the original information;

    The voice communication sending unit is configured to send the voice signal that is transmitted by the voice data processing unit;

    The sound communication receiving unit is configured to collect a sound signal on the set sound and sound point.
12. The near field communication terminal according to claim 11, wherein the sound data processing unit further comprises a determination module connected to the signal processing module, and the signal processing module is further configured to: the sound communication receiving unit The collected sound signal is demodulated to obtain an acoustic audio point used by the sound signal, and the determining module is configured to determine whether the sound processing audio point is demodulated by the signal processing module to be the same as the sound audio point selected by the audio selection module. And the result of the determination is sent to the audio selection module, and the audio selection module is further configured to determine, according to the determination result, whether to reselect the audio and audio point.
13. The near field communication terminal according to claim 11, wherein the audio selection module determines whether to reselect the audio and audio points according to the determination result, including:

    When the determination result is the same, the audio selection module reselects the acoustic audio point according to the preset rule and sends the sound to the signal processing module.
14. A near field communication terminal according to claim 11, wherein said near field communication terminal further comprises a wireless communication unit connected to said sound data processing unit for transmitting and receiving radio wave modulation information within a set distance.
15. A near field communication terminal according to claim 11, wherein said near field communication terminal further comprises a switch unit connected to said sound data processing unit, said switch unit for controlling said sound data processing unit Working status.
16.  The near field communication terminal according to claim 11, wherein said voice communication transmitting unit is a speaker.
17.  A near field communication terminal according to claim 11, wherein said sound communication receiving unit is a microphone.

    The near field communication terminal according to claim 11, wherein said near field communication terminal is

    Mobile phones, laptops, tablets, self-service information machines, broadcast terminals, authentication terminals or POS terminals.

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