CN112187406B - Error correction method, device and medium for true wireless earphone - Google Patents
Error correction method, device and medium for true wireless earphone Download PDFInfo
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- CN112187406B CN112187406B CN202011023290.3A CN202011023290A CN112187406B CN 112187406 B CN112187406 B CN 112187406B CN 202011023290 A CN202011023290 A CN 202011023290A CN 112187406 B CN112187406 B CN 112187406B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
- H04L1/0063—Single parity check
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
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Abstract
The application discloses an error correction method, an error correction device and an error correction medium for a true wireless earphone, wherein the method comprises the following steps: after acquiring a data packet from the terminal device, the main ear firstly judges whether the data in the data packet has errors, and if the data has errors, the main ear corrects the data with errors in the data packet according to a preset error correction method. According to the technical scheme, when error correction is achieved, only error data in a data packet are corrected, the problem that the complete data packet needs to be sent again to replace in the prior art is solved, the data volume is small compared with the whole data packet, therefore, the transmission speed is high, the error correction speed when packet loss occurs in the data transmission process of a real wireless earphone is improved, time delay is reduced, the transmission reliability of real wireless earphone communication is improved, retransmission of the data packet is reduced, the implementation method is simple, and the feasibility is high.
Description
Technical Field
The present application relates to the field of wireless headset technologies, and in particular, to a method, an apparatus, and a medium for error correction of a true wireless headset.
Background
With the development of wireless technology, the application of wireless headsets has become widespread, wherein the recent appearance of a true wireless interconnection stereo bluetooth headset (TWS headset) is a typical one of the wireless headsets. The TWS headset communicates with the terminal device via a wireless communication protocol (e.g., bluetooth). Typically, a TWS headset has two audio output devices, a master ear and a slave ear. The main ear is used for being connected with terminal equipment communication, and terminal equipment passes through the bluetooth and transmits audio data to main ear, and the mode that obtains data from the ear mainly has two kinds: one is a Relay (Relay) mode, that is, the master ear obtains data and forwards the data to the slave ear; the other is a listening mode, namely the slave ear acquires data by monitoring a communication channel between the master ear and the terminal equipment.
The above data transmission process has the possibility of bluetooth packet loss, and no matter the packet loss of the master ear or the slave ear needs to be processed by a corresponding mechanism, otherwise, the situation of audio interruption or noise occurs, which affects the user experience. At present, packet loss in the TWS headset communication process mainly occurs in the following processing modes: when the main ear loses packets, the mobile phone retransmits, when the auxiliary ear loses packets, the packet can be acquired through the main ear retransmission, and the packet can also be acquired through the mobile phone retransmitting auxiliary ear monitoring. However, in any of the above processing methods, the complete data packet needs to be retransmitted, the data volume is large, and more bandwidth is occupied, which causes long transmission time and poor real-time performance, and affects user experience.
In view of the above-mentioned prior art, it is an urgent problem to those skilled in the art to find an error correction method for a true wireless headset that reduces the time delay.
Disclosure of Invention
The application aims to provide an error correction method, an error correction device and an error correction medium for a true wireless earphone.
In order to solve the above technical problem, the present application provides an error correction method for a wireless headset, which is applied to a main ear, and includes:
receiving a first data packet sent by terminal equipment;
verifying the data in the first data packet according to a preset verification method;
and if the data in the first data packet is wrong, correcting the wrong data in the first data packet according to a preset error correction method.
Preferably, the performing error correction on the data in which the error occurs in the first data packet according to a preset error correction method specifically includes:
if the even-order data in the first data packet is in error, carrying out error correction on the even-order data in the first data packet through an even-order error correcting code sent from an ear; the even-order error correcting code is generated by the slave according to even-order data in a second data packet, and the second data packet is obtained by the slave monitoring;
if the odd data in the first data packet is in error, correcting the error of the odd data in the first data packet through the odd error correction code sent from the ear; wherein the odd error correction code is generated for the slave from odd data in a second data packet.
Preferably, the error correcting the even-order data in the first data packet by the even-order error correction code transmitted from the ear specifically includes:
if the odd data in the first data packet has no error, transmitting odd error correction codes generated according to the odd data of the first data packet to the slave ear;
if the even-order data in the second data packet has no error, receiving the even-order error correction code which is sent by the slave ear and is generated according to the even-order data of the second data packet;
and correcting error of even-order data in the first data packet according to the even-order error correcting code.
Preferably, if the even-order error correction code is not received and/or the first acknowledgement information returned after the odd-order error correction code is received from the ear, the method further includes:
if the even-order data in the first data packet has no error, sending an even-order error correction code generated according to the even-order data of the first data packet to the slave ear;
if the odd data in the second data packet has no error, receiving the odd error correction code which is sent by the slave ear and is generated according to the odd data of the second data packet;
correcting the odd data in the first data packet according to the odd error correction code;
when the odd-order error correction code and the second confirmation information transmitted from the slave ear are received, third confirmation information is transmitted to the terminal equipment; wherein the second acknowledgement information is generated after the slave ear receives the even-order error correction code transmitted by the master ear.
Preferably, the performing error correction on the odd data in the first data packet by using the odd error correction code transmitted from the ear specifically includes:
if the even-order data in the first data packet has no error, sending an even-order error correction code generated according to the even-order data of the first data packet to the slave ear;
if the odd data in the second data packet has no error, receiving the odd error correction code which is sent by the slave ear and is generated according to the odd data of the second data packet;
and correcting the odd data in the first data packet according to the odd error correction code.
Preferably, the method further comprises the following steps:
when the odd-order error correction code and the second confirmation information transmitted from the slave ear are received, third confirmation information is transmitted to the terminal equipment; wherein the second acknowledgement information is generated after the slave ear receives the even-order error correction code sent by the master ear;
and when the odd-order error correcting code and/or the second confirmation information are/is not received, sending negative information to the terminal equipment and receiving the first data packet again.
Preferably, the first data packet specifically includes a packet header, a time interval, audio data and a cyclic redundancy check code;
the verifying the data in the first data packet according to the preset verifying method specifically includes acquiring an error condition of the audio data in the first data packet through the cyclic redundancy check code.
In order to solve the above technical problem, the present application further provides an error correction method for a true wireless headset, which is applied to a slave ear, and includes:
monitoring a communication link between the terminal equipment and a main ear to acquire a second data packet in the process that the terminal equipment sends a first data packet to the main ear;
verifying the data in the second data packet according to a preset verification method;
and if the data in the second data packet is wrong, correcting the wrong data in the second data packet according to a preset error correction method.
In order to solve the above technical problem, the present application further provides an error correction device for a wireless earphone, which is applied to a main ear, and includes:
the first receiving module is used for receiving a first data packet sent by the terminal equipment;
the first checking module is used for checking the data in the first data packet according to a preset checking method;
and the first error correction module is used for correcting the error of the data in the first data packet according to a preset error correction method if the data in the first data packet has errors.
In order to solve the above technical problem, the present application further provides an error correction device for a wireless earphone, which is applied to a slave ear, and includes:
the second receiving module is used for monitoring a communication link between the terminal equipment and the main ear to acquire a second data packet in the process that the terminal equipment sends the first data packet to the main ear;
the second checking module is used for checking the data in the second data packet according to a preset checking method;
and the second error correction module is used for correcting the error of the data in the second data packet according to a preset error correction method if the data in the second data packet has errors.
In order to solve the above technical problem, the present application further provides an error correction device for a true wireless headset, including a memory for storing a computer program;
a processor for implementing the steps of the error correction method of the true wireless headset when executing the computer program.
In order to solve the above technical problem, the present application further provides a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the error correction method for a true wireless headset as described above.
According to the error correction method for the true wireless earphone, after the main ear acquires the data packet from the terminal equipment, whether the data in the data packet is wrong or not is judged firstly, and if the data is wrong, the data with the errors in the data packet is corrected according to a preset error correction method. According to the technical scheme, when error correction is achieved, only error data in a data packet are corrected, the problem that the complete data packet needs to be sent again to replace in the prior art is solved, the data volume is small compared with the whole data packet, therefore, the transmission speed is high, the error correction speed when packet loss occurs in the data transmission process of a real wireless earphone is improved, time delay is reduced, the transmission reliability of real wireless earphone communication is improved, retransmission of the data packet is reduced, the implementation method is simple, and the feasibility is high.
Drawings
In order to more clearly illustrate the embodiments of the present application, the drawings needed for the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a structural diagram of an error correction system of a true wireless headset according to an embodiment of the present disclosure;
fig. 2 is a flowchart of an error correction method applied to a true wireless headset of a main ear according to an embodiment of the present application;
fig. 3 is a flowchart of another error correction method applied to a true wireless headset of a main ear according to an embodiment of the present application;
fig. 4 is a flowchart of another error correction method applied to a true wireless headset of a main ear according to an embodiment of the present application;
fig. 5 is a flowchart of an error correction method applied to a true wireless headset from an ear according to an embodiment of the present application;
fig. 6 is a flowchart of an error correction method of a true wireless headset in an application scenario according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of an error correction device applied to a true wireless headset of a main ear according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of an error correction device applied to a true wireless earphone of a slave ear according to an embodiment of the present application;
fig. 9 is a block diagram of an error correction apparatus of a wireless headset according to another embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the present application.
The core of the application is to provide an error correction method, an error correction device and an error correction medium for a true wireless earphone, which are used for improving the error correction speed when packet loss occurs in the data transmission process of the true wireless earphone and reducing time delay.
For ease of understanding, the following description will discuss a hardware environment to which the technical solution of the present application is applied. Referring to fig. 1, the present application provides a component architecture of an error correction system for a true wireless headset.
As shown in fig. 1, the error correction system of the true wireless headset of the present application may include a master ear 102, a slave ear 101, and a headset case 103.
In a specific implementation, the terminal device 100 represents a device capable of establishing two-way communication with a true wireless headset, such as a portable bluetooth device, e.g., a mobile phone, a Pad, etc. The master ear 102 and the slave ear 101 are opposite and can be switched, and only one of the master ears is the master ear at the same time. The earphone box 103 is used for storing and charging a true wireless earphone, and devices such as a battery, a controller and a hall sensor are arranged in the earphone box 103. The main ear 102 and the terminal device 100 establish a bidirectional main communication connection 104, and the main ear 102 receives a first data packet transmitted by the terminal device 100 through the bidirectional main communication connection 104. The master ear 102 and the slave ear 101 establish a bidirectional slave communication connection 105, and the slave ear 101 acquires communication parameters of the bidirectional master communication connection 104, including a bluetooth address of the terminal device 100, key information of the bidirectional master communication connection 104, and the like, through the listening channel 106, thereby acquiring the second data packet. It should be noted that the slave ear 101 can only listen to the communication parameters of the master ear 102 and the terminal device 100 through the listening channel 106, and cannot transmit data to the terminal device 100 through the listening channel 106. It can be understood that after the terminal device 100 sends out a data packet, the main ear 102 receives a first data packet, the ear 101 obtains a second data packet, and the first data packet and the second data packet may be the same or different.
It should be noted that, when a real wireless headset is plugged into the box, the bidirectional slave communication connection 105 is specifically serial communication.
In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings.
It should be noted that, the true wireless headset mentioned in the present application includes two headsets, typically a master ear and a slave ear, which are respectively worn on the left and right ears of the user. The main ear and the slave ear are opposite and can be switched, only one of the main ear and the slave ear is the main ear at the same time, and the difference between the main ear and the slave ear is that the main ear is directly connected with terminal equipment, such as a mobile phone. The slave ear is not directly connected with the terminal equipment, but realizes the communication with the terminal equipment through the forwarding of the master ear, or acquires the data by monitoring the communication link between the master ear and the terminal equipment. The true wireless earphone that provides in this application, main ear and follow the ear when going into the box, the communication mode of the two is serial communication, can improve data transmission's success rate, and of course, main ear and follow the ear also can communicate through wireless mode such as bluetooth, and this application does not all limit.
Fig. 2 is a flowchart of an error correction method applied to a true wireless headset of a main ear according to an embodiment of the present disclosure. As shown in fig. 2, the method includes:
s10: and receiving a first data packet sent by the terminal equipment.
S11: and checking the data in the first data packet according to a preset checking method.
Specifically, the error condition of the audio data in the first data packet is obtained through the cyclic redundancy check code.
In a specific implementation, the terminal device establishes a bidirectional communication connection with the main ear through a communication module (e.g., a bluetooth module), and the communication between the terminal device and the main ear may include, but is not limited to, transmission of data packets. Specifically, the first data packet specifically includes a packet header, a time interval, audio data, and a cyclic redundancy check code.
It should be noted that, the CRC code is a polynomial coding method, and for an information code R (i.e. a data packet) to be transmitted, a polynomial g (x) is defined by a transmitting side (i.e. a terminal device) and a receiving side (i.e. a leading ear), so that the CRC code to be transmitted is a combination of the information code R plus a remainder of the polynomial g (x) modulo 2 and divided by the information code, and the CRC code is used for the receiving side of the data packet, i.e. the leading ear, to check whether there is an error in the received information, and if there is an error, the leading ear records the position of the error and waits for receiving correct data for error correction.
S12: and if the data in the first data packet is wrong, correcting the wrong data in the first data packet according to a preset error correction method.
In specific implementation, after the error condition of the audio data in the first data packet is obtained through the cyclic redundancy check code, error correction is performed on the data in which the error occurs in the first data packet according to a preset error correction method. The preset error correction method may be to correct error of erroneous data by obtaining an error correction check code, and it can be understood that the data with errors specifically refers to data that is lost or data is incorrectly transmitted during a transmission process.
According to the error correction method for the true wireless earphone, after the main ear acquires the data packet from the terminal equipment, whether errors occur in the data packet is judged at first, and if the data are in errors, the errors of the data in the data packet are corrected according to a preset error correction method. According to the technical scheme, when error correction is achieved, only error data in a data packet are corrected, the problem that the complete data packet needs to be sent again to replace in the prior art is solved, the data volume is small compared with the whole data packet, therefore, the transmission speed is high, the error correction speed when packet loss occurs in the data transmission process of a real wireless earphone is improved, time delay is reduced, the transmission reliability of real wireless earphone communication is improved, retransmission of the data packet is reduced, the implementation method is simple, and the feasibility is high.
Preferably, the error correction of the data with errors in the first data packet according to the preset error correction method specifically includes:
if the even-order data in the first data packet is in error, carrying out error correction on the even-order data in the first data packet through an even-order error correction code sent from the ear; the even-order error correction code is generated by the slave ear according to the even-order data in the second data packet, and the second data packet is obtained by the slave ear monitoring;
if the odd data in the first data packet is in error, correcting the odd data in the first data packet by using an odd error correction code sent from the ear; wherein the odd error correction code is generated from the odd data in the second data packet.
In a specific implementation, if the even data in the first data packet is in error, error correction is performed according to the even error correction code sent from the ear, if the odd data in the first data packet is in error, error correction is performed according to the odd error correction code sent from the ear, correspondingly, if the even data in the second data packet is in error, error correction is performed according to the even error correction code sent from the main ear, and if the odd data in the second data packet is in error, error correction is performed according to the odd error correction code sent from the main ear.
It should be noted that both the odd error correction code and the even error correction code are generated by the master ear and the slave ear according to the internal data thereof, and if the even data in the second data packet of the slave ear has no error, the slave ear sends the even error correction code to the master ear so that the master ear can correct the error; if the even data in the second data packet of the slave ear has a problem, the slave ear does not send the even error correction code to the master ear, and at the moment, if the even data of the master ear and the slave ear are both in error, the master ear returns a negative message NACK to the terminal equipment so that the terminal equipment can resend the first data packet to the master ear after receiving the message.
It can be understood that, in this embodiment, data is divided into odd data and even data, the odd data and the even data of a data packet form a complete data packet, and an odd error correction code and an even error correction code are generated respectively according to the odd data of the data packet and the even data of the data packet, so that accuracy of error correction is ensured to a certain extent. Of course, in a specific implementation, the error correction may be performed on the first half or the second half of the data, and the embodiment is not limited thereto.
According to the error correction method of the true wireless earphone provided by the embodiment of the application, if the data in the main ear is in a problem, error correction is carried out according to the error correction code sent by the auxiliary ear; if the data in the slave ear has problems, error correction is carried out according to the error correcting code sent by the master ear, and the master ear and the slave ear are matched with each other, so that the transmission reliability of true wireless earphone communication is improved, retransmission of data packets is reduced, and the realization method is simple and has higher feasibility.
Fig. 3 is a flowchart of another error correction method applied to a true wireless headset of a main ear according to an embodiment of the present application. On the basis of the foregoing embodiment, as a preferred embodiment, the performing error correction on the even-order data in the first data packet by using the even-order error correction code transmitted from the ear specifically includes:
s20: and if the odd data in the first data packet has no error, transmitting an odd error correction code generated according to the odd data of the first data packet to the slave ear.
S21: and if the even-order data in the second data packet has no error, receiving an even-order error correction code which is sent from the ear and is generated according to the even-order data of the second data packet.
In a specific implementation, a bidirectional communication connection is established between a master ear and a slave ear, and error correction codes are mutually transmitted between the master ear and the slave ear, so that error correction is carried out on data packets stored inside respectively. Specifically, error correction codes are typically encoded based on the start point, end point, or middle one or more flags of a packet, which can represent most of the information in the packet. Of course, it is also possible to check and correct all data, but this approach may increase the communication delay and affect the user experience.
It can be understood that, since the data packet in the slave ear is obtained by monitoring the communication link between the master ear and the terminal device, under the condition that no packet loss occurs, the related data in the data packet in the master ear and the slave ear should be consistent, and therefore, in order to reduce the data amount of the error correction code, the error correction code in this application is generated according to different data at different positions in the data packet, of course, in other embodiments, the same may also be used, and this application does not limit the specific position.
S22: error correction is performed on the even data in the first data packet according to the even error correction code.
It should be noted that, after the primary ear receives the even-order error correction code sent by the secondary ear, if the even-order data of the primary ear itself has an error, the error correction is performed according to the even-order error correction code; if the even data of the primary ear itself is not erroneous, no error correction is required.
In a specific implementation, after the even-order error correction code is acquired, the master ear checks data in a data packet stored inside the master ear, and replaces erroneous or lost data in the data packet corresponding to correct data in the even-order error correction code. If the even-order error correction code sent by the slave ear is not received, it may be that the even-order data in the second data packet has an error, or the even-order error correction code is lost in the transmission process, which indicates that the error correction fails, the master ear sends negative information NACK to the terminal equipment, after the terminal equipment acquires the information, the terminal equipment sends the data packet to the master ear again, and the master ear receives the data packet again. If the error correction of the main ear is successful, whether acknowledgement information ACK returned after the auxiliary ear receives the odd-order error correction code sent by the main ear is received or not is judged, if so, the acknowledgement information ACK is also successfully corrected, the acknowledgement information ACK is sent to the terminal equipment, and if the acknowledgement information ACK sent by the auxiliary ear is not received, negative information NACK is sent to the terminal equipment, and the whole error correction process is finished.
In a specific implementation, since the main ear only corrects the even-order data, the even-order data only includes a part of information of the data packet, and does not represent the complete data of the data packet, and if the odd-order data in the first data packet is also erroneous, the above-mentioned embodiment cannot correct the error of the complete data packet. On the basis of the above embodiment, if the first acknowledgement information returned after receiving no even-order error correction code and/or receiving no odd-order error correction code from the ear, the method further includes:
if the even-order data in the first data packet has no error, sending an even-order error correction code generated according to the even-order data of the first data packet to the slave ear;
if the odd data in the second data packet has no error, receiving an odd error correction code which is sent from the ear and is generated according to the odd data of the second data packet;
correcting the odd data in the first data packet according to the odd error correction code;
when the odd-order error correction code and the second confirmation information sent from the ear are received, third confirmation information is sent to the terminal equipment; and the second confirmation information is generated after the slave ear receives the even-order error correction code transmitted by the master ear.
In the specific implementation, if the master ear does not receive the even-order error correction code or does not receive the acknowledgement information ACK returned after receiving the odd-order error correction code sent by the master ear from the slave ear, the master ear sends the even-order error correction code generated according to the even-order data of the first data packet to the slave ear, receives the odd-order error correction code generated according to the odd-order data of the second data packet sent by the slave ear, the master ear and the slave ear send the error correction codes to each other for error correction in the error correction process, if the error correction is successful, the acknowledgement information ACK is sent to the terminal equipment, and if the error correction is still failed, the negative information NACK is sent to the terminal equipment, and the whole error correction process is finished.
In the error correction method for the true wireless headset provided in this embodiment, in a first error correction period, the primary ear sends an odd error correction code to the secondary ear, and the secondary ear sends an even error correction code to the primary ear, and if the error correction in the first error correction period fails, in a second error correction period, the primary ear sends an even error correction code to the secondary ear, and the secondary ear sends the odd error correction code to the primary ear for error correction. Because the odd-order error correcting code and the even-order error correcting code are generated according to different data at different positions in the data packet respectively, after two times of verification, the data volume acquired by the main ear is larger, the correction range is wider, the error correction success rate when packet loss occurs in the data transmission process of the true wireless earphone is improved, and meanwhile, because the data volume in the verification code is far smaller than the whole data packet, the time delay is reduced, the retransmission of the data packet is reduced, the realization method is simple, and the feasibility is higher.
Fig. 4 is a flowchart of another error correction method applied to a true wireless headset of a main ear according to an embodiment of the present application. On the basis of the above embodiment, as a preferred embodiment, the performing error correction on the odd data in the first data packet by using the odd error correction code transmitted from the ear specifically includes:
s23: and if the even-order data in the first data packet has no error, transmitting an even-order error correction code generated according to the even-order data of the first data packet to the slave ear.
S24: and if the odd data in the second data packet has no error, receiving an odd error correction code which is sent from the ear and is generated according to the odd data of the second data packet.
S25: the odd data in the first data packet is error corrected according to an odd error correction code.
Preferably, the method further comprises the following steps:
when receiving the odd-order error correcting code and the second confirmation information sent from the ear, sending third confirmation information to the terminal equipment; the second confirmation information is generated after the slave ear receives the even-order error correction code sent by the master ear;
and when the odd-order error correction code and/or the second confirmation information are not received, sending negative information to the terminal equipment and receiving the first data packet again.
Since the embodiment in which the primary ear transmits the odd-order error correction code to the secondary ear and the secondary ear transmits the even-order error correction code to the primary ear is described in detail in the above embodiment, the embodiment in which the primary ear transmits the even-order error correction code to the secondary ear and the embodiment in which the secondary ear transmits the odd-order error correction code to the primary ear correspond to this embodiment, and details of this embodiment are omitted.
According to the error correction method for the true wireless earphone, the main ear corrects the odd data in the first data packet through the odd error correction code sent by the auxiliary ear, so that the error correction success rate when packet loss occurs in the data transmission process of the true wireless earphone is improved, meanwhile, the data amount in the check code is far smaller than that of the whole data packet, so that the time delay is reduced, the retransmission of the data packet is reduced, the implementation method is simple, and the feasibility is high.
Fig. 5 is a flowchart of an error correction method applied to a true wireless headset from an ear according to an embodiment of the present application. As shown in fig. 5, the method includes:
s30: and monitoring a communication link between the terminal equipment and the main ear to acquire a second data packet in the process that the terminal equipment sends the first data packet to the main ear.
S31: and checking the data in the second data packet according to a preset checking method.
S32: and if the data in the second data packet is wrong, correcting the error of the data in the second data packet according to a preset error correction method.
Since the above embodiments describe in detail the embodiments of the error correction method applied to the real wireless earphone of the master ear, the embodiments of the error correction method applied to the real wireless earphone of the slave ear correspond to the above embodiments, and the details of the embodiments are not repeated.
In the error correction method for the true wireless headset provided in this embodiment, after the slave ear monitors the communication link between the terminal device and the master ear and acquires the second data packet, it is first determined whether an error occurs in data in the data packet, and if the data is in error, the error correction is performed on the data in the data packet according to a preset error correction method. According to the technical scheme, when error correction is achieved, only error data in a data packet are corrected, the problem that the complete data packet needs to be sent again to replace in the prior art is solved, the data volume is small compared with the whole data packet, therefore, the transmission speed is high, the error correction speed when packet loss occurs in the data transmission process of a real wireless earphone is improved, time delay is reduced, the transmission reliability of real wireless earphone communication is improved, retransmission of the data packet is reduced, the implementation method is simple, and the feasibility is high.
In order to make the technical solutions provided by the present application more clear for those skilled in the art, a specific application scenario involving a master ear, a slave ear, and a terminal device is further provided herein for explanation, and fig. 6 is a flowchart of an error correction method of a true wireless headset in the application scenario provided in the embodiment of the present application. As shown in fig. 6, the method includes the steps of:
s40: the master ear establishes a bi-directional slave communication connection with the slave ear.
S41: the main ear establishes a bidirectional main communication connection with the terminal device.
S42: the master ear transmits the relevant parameters of the bi-directional master communication connection to the slave ear.
S43: and the master ear receives the first data packet sent by the terminal equipment.
S44: and the slave ear monitors the communication link between the terminal equipment and the master ear to acquire the second data packet.
S45: the master ear transmits odd-order error correction codes to the slave ear.
S46: the slave ear sends an even order error correction code to the master ear.
S47: and the primary ear checks and corrects the first data packet according to the acquired even-order error correction code.
S48: and checking and correcting the second data packet according to the odd-order error correction code acquired from the ear.
S49: the slave ear successfully corrects the error and sends confirmation information to the master ear.
S50: and the master ear and the slave ear successfully correct the errors, and the master ear sends confirmation information to the terminal equipment.
The above steps are a specific application scenario, and corresponding steps may be added in other application scenarios, which are not limited herein.
In the above embodiments, the error correction method applied to the real wireless earphone of the master ear and the error correction method applied to the real wireless earphone of the slave ear are described in detail, and the present application also provides embodiments corresponding to the error correction device applied to the real wireless earphone of the master ear and the error correction device applied to the real wireless earphone of the slave ear. It should be noted that the present application describes the embodiments of the apparatus portion from two perspectives, one is from the perspective of the function module, and the other is from the perspective of the hardware.
Fig. 7 is a schematic structural diagram of an error correction device applied to a true wireless headset of a main ear according to an embodiment of the present application. As shown in fig. 7, the apparatus includes, based on the angle of the function module:
a first obtaining module 10, configured to receive a first data packet sent by a terminal device;
the first checking module 11 is configured to check data in the first data packet according to a preset checking method;
the first error correction module 12 is configured to, if the data in the first data packet is erroneous, correct the erroneous data in the first data packet according to a preset error correction method.
Fig. 8 is a schematic structural diagram of an error correction device applied to a real wireless earphone from the ear according to an embodiment of the present application. As shown in fig. 8, the apparatus includes, based on the angle of the function module:
a second receiving module 20, configured to monitor a communication link between the terminal device and the main ear to obtain a second data packet in a process that the terminal device sends the first data packet to the main ear;
the second checking module 21 is configured to check the data in the second data packet according to a preset checking method;
and the second error correction module 22 is configured to, if the data in the second data packet is erroneous, correct the erroneous data in the second data packet according to a preset error correction method.
Since the embodiments of the apparatus portion and the method portion correspond to each other, please refer to the description of the embodiments of the method portion for the embodiments of the apparatus portion, which is not repeated here.
In the error correction device for the true wireless headset provided in this embodiment, after the main ear acquires the data packet from the terminal device, it is first determined whether an error occurs in the data packet, and if the data is in error, the error correction is performed on the data in the data packet that has the error according to a preset error correction method. According to the technical scheme, when error correction is achieved, only error correction is conducted on data which are wrong in a data packet, the problem that complete data packets need to be sent again to replace in the prior art is solved, the data volume is small compared with the whole data packet, therefore, the transmission speed is high, the error correction speed when packet loss occurs in the data transmission process of a real wireless earphone is improved, time delay is reduced, the transmission reliability of real wireless earphone communication is improved, retransmission of the data packet is reduced, the implementation method is simple, and the feasibility is high.
Fig. 9 is a block diagram of an error correction apparatus for a true wireless headset according to another embodiment of the present application, as shown in fig. 9, the apparatus includes, in terms of hardware structure: a memory 30 for storing a computer program;
a processor 31 for implementing the steps of the error correction method of the true wireless headset as in the above embodiments when executing the computer program.
The error correction device of the true wireless headset provided by the embodiment may include, but is not limited to, a smart phone, a tablet computer, a notebook computer, or a desktop computer.
The processor 31 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The processor 31 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 31 may also include a main processor and a coprocessor, where the main processor is a processor for Processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 31 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content required to be displayed on the display screen. In some embodiments, the processor 31 may further include an AI (Artificial Intelligence) processor for processing a calculation operation related to machine learning.
Memory 30 may include one or more computer-readable storage media, which may be non-transitory. Memory 30 may also include high speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In this embodiment, the memory 30 is at least used for storing the following computer program 301, wherein after being loaded and executed by the processor 31, the computer program can implement the relevant steps of the error correction method for the true wireless headset disclosed in any of the foregoing embodiments. In addition, the resources stored by the memory 30 may also include an operating system 302, data 303, and the like, and the storage may be transient storage or permanent storage. Operating system 302 may include Windows, unix, linux, and the like.
In some embodiments, the error correction device of the true wireless headset may further include a display screen 32, an input/output interface 33, a communication interface 34, a power source 35, and a communication bus 36.
Those skilled in the art will appreciate that the configuration shown in fig. 9 does not constitute a limitation of error correction arrangements for true wireless headsets and may include more or fewer components than shown.
The error correction device provided by the embodiment of the application comprises a memory and a processor, and when the processor executes a program stored in the memory, the following method can be realized: after acquiring a data packet from the terminal device, the main ear firstly judges whether the data in the data packet has errors, and if the data has errors, the main ear corrects the data with errors in the data packet according to a preset error correction method. According to the technical scheme, when error correction is achieved, only error correction is conducted on data which are wrong in a data packet, the problem that complete data packets need to be sent again to replace in the prior art is solved, the data volume is small compared with the whole data packet, therefore, the transmission speed is high, the error correction speed when packet loss occurs in the data transmission process of a real wireless earphone is improved, time delay is reduced, the transmission reliability of real wireless earphone communication is improved, retransmission of the data packet is reduced, the implementation method is simple, and the feasibility is high.
Finally, the application also provides a corresponding embodiment of the computer readable storage medium. The computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps as set forth in the above-mentioned method embodiments.
It is to be understood that if the method in the above embodiments is implemented in the form of software functional units and sold or used as a stand-alone product, it can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium and executes all or part of the steps of the methods described in the embodiments of the present application, or all or part of the technical solutions. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.
The error correction method, device and medium for a true wireless headset provided by the present application are described in detail above. The embodiments are described in a progressive mode in the specification, the emphasis of each embodiment is on the difference from the other embodiments, and the same and similar parts among the embodiments can be referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, without departing from the principle of the present application, the present application can also make several improvements and modifications, and those improvements and modifications also fall into the protection scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
Claims (11)
1. An error correction method for a true wireless earphone, applied to a main ear, comprises:
receiving a first data packet sent by terminal equipment;
verifying the data in the first data packet according to a preset verification method;
if the data in the first data packet is wrong, correcting the wrong data in the first data packet according to a preset error correction method;
the error correction of the data with errors in the first data packet according to the preset error correction method specifically includes:
if the even-order data in the first data packet is in error, carrying out error correction on the even-order data in the first data packet through an even-order error correction code sent from an ear; the even-order error correcting code is generated by the slave according to even-order data in a second data packet, and the second data packet is obtained by the slave monitoring;
if the odd data in the first data packet is in error, correcting the error of the odd data in the first data packet through the odd error correction code sent from the ear; wherein the odd error correction code is generated for the slave according to odd data in a second data packet;
the second data packet is obtained by monitoring a communication link between the terminal equipment and the main ear by the slave ear in the process that the terminal equipment sends the first data packet to the main ear;
and if the first data packet and the second data packet have no errors, the first data packet and the second data packet are the same.
2. The error correction method of a true wireless headset according to claim 1, wherein the error correcting the even-order data in the first data packet by the even-order error correction code transmitted from the ear specifically comprises:
if the odd data in the first data packet has no error, sending an odd error correction code generated according to the odd data of the first data packet to the slave ear;
if the even-order data in the second data packet has no error, receiving the even-order error correction code which is sent by the slave ear and is generated according to the even-order data of the second data packet;
and correcting the error of the even-order data in the first data packet according to the even-order error correction code.
3. The error correction method for a true wireless headset according to claim 2, wherein if the even error correction code is not received and/or the first acknowledgement information returned after the odd error correction code is received from the ear, the method further comprises:
if the even-order data in the first data packet has no error, sending an even-order error correction code generated according to the even-order data of the first data packet to the slave ear;
if the odd data in the second data packet has no error, receiving the odd error correction code which is sent by the slave ear and is generated according to the odd data of the second data packet;
correcting the odd data in the first data packet according to the odd error correcting code;
when the odd error correcting code and the second confirmation information which are sent by the slave ear are received, third confirmation information is sent to the terminal equipment; wherein the second acknowledgement information is generated after the slave ear receives the even-order error correction code transmitted by the master ear.
4. The error correction method of a true wireless headset according to claim 1, wherein the error correcting the odd data in the first data packet by the odd error correction code transmitted from the ear specifically comprises:
if the even-order data in the first data packet has no error, sending an even-order error correction code generated according to the even-order data of the first data packet to the slave ear;
if the odd data in the second data packet has no error, receiving the odd error correction code which is sent by the slave ear and is generated according to the odd data of the second data packet;
and correcting the odd data in the first data packet according to the odd error correction code.
5. The error correction method for a true wireless headset of claim 4, further comprising:
when the odd-order error correction code and the second confirmation information transmitted from the slave ear are received, third confirmation information is transmitted to the terminal equipment; wherein the second acknowledgement information is generated after the slave ear receives the even-order error correction code sent by the master ear;
and when the odd-order error correcting code and/or the second confirmation information are/is not received, sending negative information to the terminal equipment and receiving the first data packet again.
6. The error correction method of a true wireless headset according to any one of claims 1 to 4, wherein the first data packet specifically includes a packet header, a time interval, audio data, and a cyclic redundancy check code;
the verifying the data in the first data packet according to the preset verifying method specifically includes acquiring an error condition of the audio data in the first data packet through the cyclic redundancy check code.
7. An error correction method for a true wireless earphone, applied to a slave ear, comprising:
monitoring a communication link between the terminal equipment and a main ear to acquire a second data packet in the process that the terminal equipment sends a first data packet to the main ear;
verifying the data in the second data packet according to a preset verification method;
if the data in the second data packet is wrong, correcting the wrong data in the second data packet according to a preset error correction method;
if the data in the second data packet is erroneous, the error correction is performed on the erroneous data in the second data packet according to a preset error correction method, which includes:
if the even-order data in the second data packet is in error, carrying out error correction on the even-order data in the second data packet through an even-order error correcting code sent by a main ear; the even-order error correcting code sent by the primary ear is generated by the primary ear according to even-order data in a first data packet;
if the odd data in the second data packet is in error, correcting the odd data in the second data packet by using an odd error correction code sent by the main ear; the odd-order error correction code sent by the main ear is generated for the main ear according to odd-order data in a first data packet;
and if the first data packet and the second data packet have no errors, the first data packet and the second data packet are the same.
8. An error correction device for a true wireless earphone, applied to a main ear, comprising:
the first receiving module is used for receiving a first data packet sent by the terminal equipment;
the first checking module is used for checking the data in the first data packet according to a preset checking method;
the first error correction module is used for correcting errors of data which are wrong in the first data packet according to a preset error correction method if the data in the first data packet are wrong;
the first error correction module is specifically configured to, if even-order data in the first data packet is erroneous, perform error correction on the even-order data in the first data packet through an even-order error correction code sent from an ear; the even-order error correcting code is generated by the slave ear according to even-order data in a second data packet, and the second data packet is obtained by the slave ear monitoring; if the odd data in the first data packet is in error, correcting the error of the odd data in the first data packet through the odd error correction code sent from the ear; wherein the odd error correction code is generated for the slave according to odd data in a second data packet;
the second data packet is obtained by monitoring a communication link between the terminal equipment and the main ear by the slave ear in the process that the terminal equipment sends the first data packet to the main ear;
and if the first data packet and the second data packet have no errors, the first data packet and the second data packet are the same.
9. An error correction device for a true wireless earphone, applied to a slave ear, comprising:
the second receiving module is used for monitoring a communication link between the terminal equipment and a main ear to acquire a second data packet in the process that the terminal equipment sends the first data packet to the main ear;
the second check module is used for checking the data in the second data packet according to a preset check method;
the second error correction module is used for correcting the error of the data in the second data packet according to a preset error correction method if the data in the second data packet has errors;
the second error correction module is specifically configured to, if the even-order data in the second data packet is erroneous, perform error correction on the even-order data in the second data packet through an even-order error correction code sent by a main ear; the even-order error correcting code sent by the main ear is generated by the main ear according to the even-order data in the first data packet; if the odd data in the second data packet is in error, correcting the odd data in the second data packet by using an odd error correcting code sent by the main ear; the odd-order error correcting code sent by the main ear is generated for the main ear according to odd-order data in a first data packet; and if the first data packet and the second data packet have no errors, the first data packet and the second data packet are the same.
10. An error correction apparatus for a true wireless headset, comprising a memory for storing a computer program;
a processor for implementing the steps of the error correction method of a true wireless headset according to any one of claims 1 to 7 when executing the computer program.
11. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which when executed by a processor implements the steps of the error correction method of a true wireless headset according to any one of claims 1 to 7.
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| CN112835736B (en) * | 2021-01-22 | 2023-08-22 | 张立旭 | Universal data error correction method and system |
| CN112954523B (en) * | 2021-01-29 | 2023-06-02 | 佳禾智能科技股份有限公司 | TWS earphone checking method |
| CN114079895B (en) * | 2021-07-22 | 2024-03-19 | 珠海市杰理科技股份有限公司 | Audio packet loss data receiving circuit, method, audio playing device and system |
| CN115484002A (en) * | 2022-09-09 | 2022-12-16 | 中国电信股份有限公司 | Information processing method and device, electronic equipment and computer readable medium |
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