WO2021208683A1

WO2021208683A1 - Control signal sending method, control signal receiving method, and related device

Info

Publication number: WO2021208683A1
Application number: PCT/CN2021/082503
Authority: WO
Inventors: 黄韬
Original assignee: 华为技术有限公司
Priority date: 2020-04-16
Filing date: 2021-03-24
Publication date: 2021-10-21
Also published as: CN113539280A

Abstract

A control signal sending method, a control signal receiving method, and a device, relating to the field of intelligent terminals. A control signal of a sending end is borne on a sound signal, and the sound signal is modulated and then sent to a receiving end; the sound is demodulated at a receiving end, so that a corresponding control signal is obtained. Thus are provided a control signal sending mode and a control signal receiving mode capable, in a radio frequency test environment, of implementing signal control on a device under test by means of sound. Control signal interference on a test signal is avoided, and radio frequency test efficiency is thus improved.

Description

Control signal sending method, receiving method and related equipment

This application claims the priority of the Chinese patent application filed with the Chinese Patent Office on April 16, 2020, the application number is 202010298573.2, and the application name is "control signal sending method, receiving method and related equipment", the entire content of which is incorporated by reference In this application.

Technical field

The embodiments of the present application relate to the technical field of smart terminals, and in particular, to a method for sending a control signal, a method for receiving a control signal, and related equipment.

Background technique

With the rapid development of mobile communications, various mobile terminals emerge in endlessly; in the production process of mobile terminals, various mobile terminals need to be tested for performance, including radio frequency testing; radio frequency is an electromagnetic frequency that can radiate into space. The range is between 300KHz-300GHz.

At present, in the process of radio frequency testing of mobile terminals, signal interference problems are usually encountered; for example, when performing over-the-air (OTA) testing of mobile terminals, control signals need to be sent to the mobile terminals to facilitate Control the frequency band of the mobile terminal to perform radio frequency testing; however, if the mobile terminal is controlled by wireless means such as WIFI, the WIFI signal will cause interference to the test signal; and if the signal is controlled by a wired means such as a USB cable When the mobile terminal performs signal control, the cable will reflect the test signal, thereby causing interference to the test signal. Therefore, how to solve the interference of the control signal on the test signal in the radio frequency test process becomes a problem that needs to be solved urgently.

Summary of the invention

The embodiments of the present application provide a method for sending and receiving control signals, and related devices to provide a method for sending and receiving control signals, which can realize signal control of the device under test by sound in a radio frequency test environment, thereby The interference caused by the control signal to the test signal can be avoided, and the efficiency of the radio frequency test can be improved.

In the first aspect, an embodiment of the present application provides a method for sending a control signal, including:

Detecting the first operation for generating control signaling;

Specifically, the first operation may be an operation input by a user, and the operation may be used to generate an instruction for controlling the device under test, for example, adjusting the radio frequency band of the device under test.

In response to the first operation, generating control signaling, and converting the control signaling into a binary code stream;

The audio coded signal is modulated and sent to the receiving end.

Specifically, the binary code stream obtained by the control signaling conversion can be encoded to obtain audio coding, and then the audio coding can be modulated to generate a sound waveform signal, and finally the sound signal can be transmitted through a speaker or the like.

In one of the possible implementation manners, the performing audio encoding on the binary code stream to obtain an audio encoded signal includes:

Compressing the binary code stream to obtain a data frame, and adding a frame header to the data frame, wherein the frame header includes a synchronization code and a cyclic redundancy check (CRC) code;

The data frame is coded to obtain an audio coded signal.

Specifically, the compression is used to improve the transmission efficiency of data. Since the data rate of voice transmission is low, the amount of data transmitted each time can be increased through compression, thereby improving the data transmission efficiency; the data frame header is used at the receiving end Analyze the compressed data frame.

In one of the possible implementation manners, before the detecting the first operation for generating control signaling, the method further includes:

In response to the received correction signal, performing signal strength analysis on the correction signal to obtain channel compensation;

The modulating and sending the audio coded signal to the receiving end includes:

The audio coded signal is modulated according to the channel compensation and sent to the receiving end.

Specifically, the correction signal is used to compensate the channels of different devices under test. Because different devices under test have different sound gains, the correction signal can be sent before the control signal is sent to compensate for the channel, thereby avoiding the channel Errors or missing codes caused by discrepancies.

In one of the possible implementation manners, after the audio coded signal is modulated and sent to the receiving end, the method further includes:

If a non-acknowledgement message from the receiving end is received, the audio coded signal is retransmitted.

Specifically, the non-confirmation message corresponds to the audio coding information. When the non-confirmation message is received, the corresponding audio coding signal can be retransmitted, which can improve the efficiency of data transmission and thus the efficiency of radio frequency testing.

The embodiment of the present application also provides a method for receiving a control signal, including:

Receive the audio coded signal from the sender;

Specifically, the sound signal can be received through the microphone of the device under test. Since the sound signal is continuous, the sound signal in any period of time can be sampled.

Demodulate the audio coded signal to obtain the frequency of the audio coded signal;

Specifically, the analog signal of the sound can be demodulated into a digital signal, and the demodulation method can be fast Fourier transform, so that the corresponding frequency and component in the sound signal can be obtained.

The audio coded signal is decoded according to the frequency to obtain a binary code stream, and the binary code stream is parsed to obtain control signaling.

Specifically, the sending end can perform encoding according to the codewords in the audio coding table, and therefore the receiving end can also perform decoding according to the codewords in the audio coding table, so that a binary code stream can be obtained.

In one possible implementation manner, before the receiving the audio coded signal from the sending end, the method further includes:

Send a correction signal to the sender.

Specifically, before the device under test waits to receive the control signal of the test device, when initializing the communication module, it can send a correction signal to the test device (transmitting end), and the correction signal can be a 5kHz or 8kHz pilot signal.

In one of the possible implementation manners, the decoding the audio coded signal according to the frequency to obtain a binary code stream includes:

Decode the audio coded signal according to the frequency to obtain a data frame;

Performing frame synchronization detection according to the synchronization code in the frame header of the data frame, and performing integrity detection according to the cyclic redundancy check (CRC) code in the frame header of the data frame;

If the frame synchronization detection and the integrity detection are successful, the data frame is decompressed to obtain a binary code stream.

Specifically, if the sending end compresses the binary code stream, after decoding the audio coded signal, the data frame can be obtained, and then the synchronization check and integrity check of the data frame can be performed according to the frame header in the data frame. And after the verification is successful, decompression is performed, thereby obtaining a binary code stream.

In one of the possible implementation manners, if the frame synchronization detection and integrity detection are successful, decompressing the data frame to obtain a binary code stream includes:

If the frame synchronization detection and the integrity detection are successful, decompress the data frame to obtain a binary code stream, and send a confirmation message to the sending end;

If the frame synchronization detection or integrity detection fails, a non-acknowledgement message is sent to the sender to request the sender to retransmit the data frame.

Specifically, the confirmation message or non-confirmation message corresponds to the data frame, and after receiving the confirmation message or non-confirmation message of any data frame, the sending end can determine whether to retransmit the data frame according to the message.

In the foregoing control signal sending method and receiving method, the control signal is carried by sound at the sending end, and the sound signal is modulated and sent to the receiving end. The receiving end demodulates the sound signal to obtain the carried control signal, thereby A method for sending and receiving control signals is provided, which can realize signal control of the device under test by sound in a radio frequency test environment, thereby avoiding interference caused by the control signal to the test signal and improving the efficiency of radio frequency testing.

In a second aspect, an embodiment of the present application provides a device for sending a control signal, including:

The detection module is used to detect the first operation for generating control signaling;

A conversion module, configured to generate control signaling in response to the first operation, and convert the control signaling into a binary code stream;

An encoding module, configured to perform audio encoding on the binary code stream to obtain an audio encoded signal;

The sending module is used to modulate the audio coded signal and send it to the receiving end.

In one possible implementation manner, the encoding module includes:

The compression unit is configured to compress the binary code stream to obtain a data frame, and add a frame header to the data frame, wherein the frame header includes a synchronization code and a cyclic redundancy check (CRC) code;

The encoding unit is used to encode the data frame to obtain an audio encoded signal. In one possible implementation manner, the sharing module.

In one of the possible implementation manners, the device further includes:

The compensation module is configured to perform signal strength analysis on the correction signal in response to the received correction signal to obtain channel compensation;

The sending module is further configured to modulate the audio coded signal according to the channel compensation and send it to the receiving end.

In one of the possible implementation manners, the device further includes:

The retransmission module is configured to retransmit the audio coded signal if a non-acknowledgement message from the receiving end is received.

An embodiment of the present application also provides a control signal receiving device, including:

The receiving module is used to receive the audio coding signal from the sending end;

A demodulation module, configured to demodulate the audio coded signal to obtain the frequency of the audio coded signal;

The parsing module is used to decode the audio coded signal according to the frequency to obtain a binary code stream, and parse the binary code stream to obtain control signaling.

In one of the possible implementation manners, the device further includes:

The sending module is used to send a correction signal to the sending end.

In one of the possible implementation manners, the parsing module includes:

A decoding unit, configured to decode the audio coded signal according to the frequency to obtain a data frame;

A check unit, configured to perform frame synchronization check according to the synchronization code in the frame header of the data frame, and perform integrity check according to the cyclic redundancy check (CRC) code in the frame header of the data frame;

The decompression unit is configured to decompress the data frame to obtain a binary code stream if the frame synchronization check and the integrity check succeed.

In one of the possible implementation manners, the decompression unit is further configured to decompress the data frame to obtain a binary code stream if the frame synchronization detection and integrity detection are successful, and send a confirmation message to the sending end; If the frame synchronization detection or integrity detection fails, a non-acknowledgement message is sent to the sender to request the sender to retransmit the data frame.

In a third aspect, an embodiment of the present application provides a control signal sending device, including:

One or more processors; memory; multiple application programs; and one or more computer programs, wherein the one or more computer programs are stored in the memory, and the one or more computer programs include instructions, When the instruction is executed by the device, the device is caused to perform the following steps:

Detecting the first operation for generating control signaling;

Performing audio encoding on the binary code stream to obtain an audio encoding signal;

The audio coded signal is modulated and sent to the receiving end.

In one of the possible implementation manners, when the instruction is executed by the device, the step of causing the device to perform audio encoding on the binary code stream to obtain an audio encoded signal includes:

The data frame is coded to obtain an audio coded signal.

In one possible implementation manner, when the instruction is executed by the device, the device further executes the following steps before executing the step of detecting the first operation for generating control signaling:

In one possible implementation manner, when the instruction is executed by the device, after the device executes the step of modulating the audio coded signal and sending it to the receiving end, the following steps are further executed:

Receive the audio coded signal from the sender;

In one of the possible implementation manners, before the step of receiving the audio coded signal from the transmitting end, the following steps are also performed:

Send a correction signal to the sender.

In one possible implementation manner, the step of decoding the audio coded signal according to the frequency to obtain a binary code stream includes:

In one of the possible implementation manners, if the frame synchronization detection and the integrity detection are successful, the step of decompressing the data frame to obtain a binary code stream includes:

If the frame synchronization detection and integrity detection are successful, the data frame is decompressed to obtain a binary code stream, and an acknowledgement message is sent to the sending end; if the frame synchronization detection or integrity detection fails, a non-acknowledgement is sent to the sending end Message to request the sender to retransmit the data frame.

It should be understood that the second to third aspects of the embodiments of the present application are consistent with the technical solutions of the first aspect of the embodiments of the present application, and the beneficial effects achieved by each aspect and corresponding feasible implementation manners are similar, and will not be repeated.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium in which a computer program is stored, and when it runs on a computer, the computer executes the method as described in the first aspect.

In a fifth aspect, an embodiment of the present application provides a computer program, which is used to execute the method described in the first aspect when the computer program is executed by a computer.

In a possible design, the program in the fifth aspect may be stored in whole or in part on a storage medium packaged with the processor, or may be stored in part or in a memory not packaged with the processor.

Description of the drawings

FIG. 1 is a flowchart of an embodiment of a method for sending a control signal according to this application;

Figure 2 is a flowchart of an embodiment of an application retransmission interaction mechanism;

FIG. 3 is a flowchart of an embodiment of a method for receiving a control signal according to this application;

FIG. 4 is a schematic structural diagram of an embodiment of an apparatus for sending a control signal according to this application;

FIG. 5 is a schematic structural diagram of an embodiment of a receiving device of a control signal according to this application;

Fig. 6 is a schematic structural diagram of an embodiment of an electronic device of this application.

Detailed ways

The terms used in the implementation mode part of this application are only used to explain the specific embodiments of this application, and are not intended to limit this application.

In the existing implementation schemes, the test equipment performs signal control on the tested equipment such as the mobile terminal through a wired or wireless manner, thereby performing radio frequency testing on the tested equipment. However, in the process of sending the control signal, the tested equipment is controlled by the test equipment. The test signal sent by the test equipment causes interference.

To this end, this application proposes a method for sending and receiving control signals, which can realize signal control of the device under test in a darkroom environment, thereby avoiding interference to the test signal during the radio frequency test process, thereby improving the efficiency of the radio frequency test .

FIG. 1 is a flowchart of an embodiment of a method for sending a control signal according to the present application. As shown in FIG. 1, the above-mentioned method for sending a control signal may include:

Step 101: Generate a binary code stream at the sending end.

Specifically, the sending end may be a test device, for example, a radio frequency tester; the binary code stream may be generated according to control signaling, and the control signaling may be input by the user. When the test device detects the current operation of the user, it may The corresponding control signaling is generated according to the operation, and then the control signaling can be converted into binary to obtain a binary code stream.

It should be understood that the binary code stream is a string of 0 and 1 digits, and this string of binary code streams can be parsed at the receiving end to obtain control signaling.

Step 102: Perform audio coding on the binary code stream to obtain an audio coded signal.

Specifically, when the binary code stream is obtained, the binary code stream can be encoded based on audio. In the signal transmission, the sound signal has the characteristics of a wireless signal, and the development cost is low, and the interference is small. Therefore, the binary code stream can be Encode into audio encoding.

Among them, in the process of audio coding, the dual tone multi-frequency signal (Dual Tone Multi Frequency, DTMF) method can be used, that is, the binary code stream can be encoded into DTMF code, and the DTMF code can be queried through the DTMF code table. The receiving end can decode the received DTMF code into a binary code stream by querying the DTMF code table.

Optionally, since DTMF has only 14 characters, which are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, and D, DTMF also includes the characters "*" and "#", so you can change the character "*" to a hexadecimal character "E", and change the character "#" to a hexadecimal character "F", thereby forming a hexadecimal code, that is, the DTMF code can be Hexadecimal encoding.

Further, because the audio transmission data rate is low, the binary code stream can be compressed before audio encoding, thereby improving the data transmission efficiency; wherein, the data compression can be carried out by the control protocol; in the specific implementation When the binary code stream is compressed, the corresponding data frame can be obtained. At this time, a frame header can be added to the data frame to identify the data frame. The frame header can include a synchronization code and a CRC code. The code is used to check the synchronization of the data frame, and the CRC code is used to check the integrity of the data frame. Then the data frame is audio-encoded.

Step 103: Send the audio coded signal to the receiving end.

Specifically, after the audio coded signal is obtained, since the audio coded signal is a digital signal, digital-to-analog conversion can be performed, that is, the digital signal is modulated and converted into an analog signal, and the analog signal can be transmitted through a sound card or a speaker. So that the receiving end can receive the analog signal.

In one of the possible implementations, because different tested devices may have different sound gains at different frequencies, and the current environment may bring differences in sound cancellation effects, it is also possible to estimate the gain curve of the transmission channel , Thus obtain channel compensation; in specific implementation, it can be estimated by receiving the correction signal sent by the receiving end. The correction signal can be sent when the receiving end (device under test) initializes the communication module in the radio frequency test scenario. The signal can be a 5KHz or 8KHz pilot signal; when the sending end (testing equipment) receives the correction signal, it can analyze the signal strength of the correction signal to calculate the gain curve of the channel, and according to the gain curve Determine the corresponding channel compensation, for example, when modulating the signal, you can use the following modulation function:

W=A*k*sin(x1)+A*k*sin(x2),

Among them, W can be the waveform of the sound signal, A can be the signal amplitude, k can be the compensation factor, and x1 and x2 can be the DTMF frequency. After the sound waveform is generated according to the modulation function, the sound card or the sound card can be driven according to the sound signal. The horn makes a sound, thereby transmitting the signal.

In one of the possible implementations, due to the uncertainty of the wireless communication channel, the data sent through the wireless signal may fail to be received. Therefore, in order to improve the efficiency of data transmission, the transmitted data can be retransmitted; At this time, the physical layer can be retransmitted, that is, Hybrid Automatic Repeat reQuest (HARQ). After the data frame is sent at the sender, the data frame can be stored in a preset buffer. If a Non-Acknowledgement (NACK) message from the receiving end is received, the corresponding data frame can be retransmitted. If an Acknowledgement (ACK) message is received from the receiving end, the corresponding data frame can be removed from the buffer. Delete; as shown in Figure 2, the sender sends audio coded signal A and audio coded signal B in sequence. When the receiver receives audio coded signal A, it performs synchronization check and integrity check, and sends an ACK to the sender after success. Message, when the receiving end receives the audio coding signal B, the synchronization check and the integrity check are performed. After the failure, the NACK message is sent to the sending end. When the sending end receives the ACK message, the audio coding signal A is deleted. When the sending end After receiving the NACK message, the audio coding signal B is retransmitted. After receiving the audio coding signal B, the receiver performs synchronization check and integrity check again. After success, it sends an ACK message to the sender, and when the sender receives the ACK message Then the audio coded signal B is deleted.

In this embodiment, the control signal is carried by sound at the transmitting end, and the sound signal is modulated and sent to the receiving end, thereby providing a control signal transmission method, which can realize the sound control of the device under test in a radio frequency test environment. Signal control can avoid the interference caused by the control signal to the test signal and improve the efficiency of radio frequency testing.

FIG. 3 is a flowchart of an embodiment of a method for receiving a control signal according to the present application. As shown in FIG. 2, the method for receiving a control signal may include:

Step 301: Receive an audio coded signal from the sending end.

Specifically, the audio coded signal can be received at the receiving end. Since the audio coded signal is an analog signal, the audio coded signal can be sampled, and the sampled signal can be demodulated, that is, the analog signal can be converted into a digital signal; In specific implementation, the demodulation method may be Fast Fourier Transform (FFT) calculation to obtain the frequency at which the sampling signal can be obtained.

Among them, in the sampling process, the audio coded signal can be sampled by continuous sliding window mode to ensure the continuity of the data.

In one of the possible implementations, before step 201, a correction signal can also be sent to the sending end to compensate for the channel; the correction signal can be sent when the receiving end initializes the communication module, and the correction signal can be 5KHz Or 8KHz pilot signal.

Step 302: Obtain a binary code stream according to the audio coded signal.

Specifically, after the audio coded signal is demodulated, the corresponding DTMF code can be obtained, and then the DTMF code can be decoded according to the obtained frequency. The decoding process can be performed in the DTMF code table according to the signal frequency corresponding coding Query to obtain decoded data. The decoded data can be a data frame, that is, a compressed binary code stream.

Optionally, due to the changeable environment of the wireless channel, the duration of data transmission varies, that is, the data sent after the sending end may arrive at the receiving end first, causing different data frames to arrive at the receiving end in an inconsistent order; therefore, when After the data frame is obtained, synchronization verification can be performed according to the synchronization code in the data frame header, thereby ensuring the synchronization between the sending end and the receiving end, and thus ensuring the correctness of the data frame decoding.

Further, because there may be errors or loss in the data transmission process, the integrity check of the data frame can also be performed to ensure the integrity of the received data frame, where the integrity check can be The check is completed by the CRC code in the data frame header.

Further, if both the synchronization check and the integrity check pass, the data frame can be decompressed, thereby obtaining the corresponding binary code stream, where the decompression method may correspond to the compression method of the sending end.

Optionally, the receiving end may also send an ACK message to the sending end to confirm that the data frame has been correctly received.

If any one of the synchronization check and the integrity check fails, a NACK message can be sent to request the sender to retransmit the data frame.

Step 303: parse the binary code stream to obtain control signaling.

Specifically, after the binary code stream is obtained, the binary code stream can be parsed, and the analysis process can correspond to the binary conversion process at the sending end, so that the corresponding control signaling can be obtained to realize the control of the device under test. For example, set the RF test frequency band of the device under test.

In this embodiment, the sound signal is demodulated at the receiving end to obtain the carried control signal, and the device under test is controlled through the control signal, thereby providing a control signal receiving method, which can be implemented in a radio frequency test environment. Signal control of the device under test through sound can avoid the interference caused by the control signal to the test signal and improve the efficiency of radio frequency testing.

FIG. 4 is a schematic structural diagram of an embodiment of a device for sending a control signal according to the present application. As shown in FIG. 4, the device 40 for sending a control signal may include: a detection module 41, a conversion module 42, an encoding module 43, and a sending module 44;

The detection module 41 is configured to detect the first operation for generating control signaling;

The conversion module 42 is configured to generate control signaling in response to the first operation, and convert the control signaling into a binary code stream;

The encoding module 43 is configured to perform audio encoding on the binary code stream to obtain an audio encoded signal;

The sending module 44 is configured to modulate the audio coded signal and send it to the receiving end.

In one possible implementation manner, the foregoing encoding module 43 may include: a compression unit 431 and an encoding unit 432;

The compression unit 431 is configured to compress the binary code stream to obtain a data frame, and add a frame header to the data frame, where the frame header includes a synchronization code and a cyclic redundancy check (CRC) code;

The encoding unit 432 is configured to encode the data frame to obtain an audio encoded signal.

In one possible implementation manner, the foregoing control signal sending device 40 may further include: a compensation module 45; the foregoing sending module 44 may also be used to modulate the audio coded signal according to the channel compensation and send it to the receiving end. ；

The compensation module 45 is configured to perform signal strength analysis on the correction signal in response to the received correction signal to obtain channel compensation.

In one of the possible implementation manners, the foregoing control signal sending device 40 may further include: a retransmission module 46;

The retransmission module 46 is configured to retransmit the audio coded signal if a non-acknowledgement message from the receiving end is received.

The device for sending control signals provided in the embodiment shown in FIG. 4 can be used to implement the technical solution of the method embodiment shown in FIG. 1 of the present application. For its implementation principles and technical effects, further reference may be made to related descriptions in the method embodiment.

FIG. 5 is a schematic structural diagram of an embodiment of a control signal receiving apparatus of the present application. As shown in FIG. 5, the above-mentioned control signal sending apparatus 50 may include: a receiving module 51, a demodulation module 52, and an analysis module 53;

The receiving module 51 is used to receive the audio coded signal from the transmitting end;

The demodulation module 52 is configured to demodulate the audio coded signal to obtain the frequency of the audio coded signal;

The parsing module 53 is configured to decode the audio coded signal according to the frequency to obtain a binary code stream, and parse the binary code stream to obtain control signaling.

In one of the possible implementation manners, the foregoing control signal receiving device 50 may further include: a sending module 54;

The sending module is used to send a correction signal to the sending end.

In one of the possible implementation manners, the aforementioned parsing module 53 may include a decoding unit 531, a verification unit 532, and a decompression unit 533;

The decoding unit 531 is configured to decode the audio coded signal according to the frequency to obtain a data frame;

The check unit 532 is configured to perform frame synchronization check according to the synchronization code in the frame header of the data frame, and perform integrity check according to the cyclic redundancy check (CRC) code in the frame header of the data frame ；

The decompression unit 533 is configured to decompress the data frame to obtain a binary code stream if the frame synchronization check and the integrity check succeed.

In one of the possible implementations, the decompression unit 533 may also be used to decompress the data frame if the frame synchronization detection and integrity detection succeeds, to obtain a binary code stream, and send a confirmation message to the sender ; If the frame synchronization detection or integrity detection fails, a non-acknowledgement message is sent to the sender to request the sender to retransmit the data frame.

The device for receiving control signals provided by the embodiment shown in FIG. 5 can be used to implement the technical solution of the method embodiment shown in FIG. 3 of the present application. For its implementation principles and technical effects, reference may be made to the related description in the method embodiment.

It should be understood that the division of the various modules of the control signal sending device shown in Figure 4 and the control signal receiving device shown in Figure 5 is only a logical function division, and can be fully or partially integrated into a physical entity in actual implementation. It can also be physically separated. And these modules can all be implemented in the form of software called by processing elements; they can also be implemented in the form of hardware; part of the modules can be implemented in the form of software called by the processing elements, and some of the modules can be implemented in the form of hardware. For example, the detection module may be a separately established processing element, or it may be integrated in a certain chip of the electronic device. The implementation of other modules is similar. In addition, all or part of these modules can be integrated together or implemented independently. In the implementation process, each step of the above method or each of the above modules can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more specific integrated circuits (Application Specific Integrated Circuit; hereinafter referred to as ASIC), or, one or more micro-processing DSP (Digital Singnal Processor; hereinafter referred to as DSP), or, one or more Field Programmable Gate Array (Field Programmable Gate Array; hereinafter referred to as FPGA), etc. For another example, these modules can be integrated together and implemented in the form of System-On-a-Chip (hereinafter referred to as SOC).

Fig. 6 is a schematic structural diagram of an embodiment of a control signal sending device according to the present application. As shown in Fig. 6, the above control signal sending device may include: one or more processors; memories; multiple application programs; and one or more Computer programs.

Wherein, the above-mentioned one or more computer programs are stored in the above-mentioned memory, and the above-mentioned one or more computer programs include instructions, and when the above-mentioned instructions are executed by the above-mentioned device, the above-mentioned device is caused to perform the following steps:

Detecting the first operation for generating control signaling;

The audio coded signal is modulated and sent to the receiving end.

In one of the possible implementation manners, when the above instruction is executed by the above device, the step of causing the above device to perform audio coding on the binary code stream to obtain an audio coded signal includes:

The data frame is coded to obtain an audio coded signal.

In one possible implementation manner, when the above-mentioned instruction is executed by the above-mentioned device, the above-mentioned device further executes the following steps before executing the step of detecting the first operation for generating control signaling:

In one possible implementation manner, when the above-mentioned instruction is executed by the above-mentioned device, after the above-mentioned device executes the step of modulating the audio coded signal and sending it to the receiving end, the following steps are further executed:

The sending device of the control signal shown in FIG. 6 may be a terminal device or a circuit device built in the above-mentioned terminal device. The device can be used to execute the functions/steps in the method provided in the embodiment shown in FIG. 1 of the present application.

As shown in FIG. 6, the control signal sending device 600 includes a processor 610, a transceiver 620, and an audio circuit 630. Optionally, the device 600 for sending the control signal may further include a memory 640. Among them, the processor 610, the transceiver 620, and the memory 640 can communicate with each other through an internal connection path to transfer control and/or data signals. The memory 640 is used to store computer programs, and the processor 610 is used to download the Call and run the computer program.

The aforementioned memory 640 may be a read-only memory (ROM), other types of static storage devices that can store static information and instructions, a random access memory (RAM), or other types that can store information and instructions. The type of dynamic storage device can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM), or other optical disk storage, CD-ROM Storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program codes in the form of instructions or data structures And any other media that can be accessed by the computer.

The above-mentioned processor 610 and the memory 640 may be integrated into a processing device, and more commonly, they are components independent of each other. The processor 610 is configured to execute the program code stored in the memory 640 to implement the above-mentioned functions. During specific implementation, the memory 640 may also be integrated in the processor 610, or independent of the processor 610.

Optionally, the control signal sending device 600 may further include a speaker 650 and a microphone 660, where the speaker 650 is used to send out the sound signal generated by the audio circuit, and the microphone 660 is used to receive the sound signal.

Optionally, the control signal sending device 600 may further include an antenna 670 for sending wireless signals output by the transceiver 620 and receiving wireless signals.

Optionally, the foregoing control signal sending device 600 may further include a power supply 680 for providing power to various devices or circuits in the terminal device.

It should be understood that the control signal sending device 600 shown in FIG. 6 can implement each process of the method provided in the embodiment shown in FIG. 1 of the present application. The operation and/or function of each module in the sending device 600 of the control signal are respectively for implementing the corresponding process in the foregoing method embodiment. For details, please refer to the description in the method embodiment shown in FIG. 1 of the present application. To avoid repetition, detailed description is appropriately omitted here.

It should be understood that the processor 610 in the control signal sending device 600 shown in FIG. 6 may be a system-on-chip SOC, and the processor 610 may include a central processing unit (Central Processing Unit; hereinafter referred to as CPU), and may further include Other types of processors, such as graphics processing unit (Graphics Processing Unit; hereinafter referred to as GPU), etc.

In short, each part of the processor or processing unit inside the processor 610 can cooperate to implement the previous method flow, and the corresponding software program of each part of the processor or processing unit can be stored in the memory 640.

An embodiment of the present application also provides a control signal receiving device. The above control signal receiving device may include: one or more processors; a memory; multiple application programs; and one or more computer programs.

Receive the audio coded signal from the sender;

In one of the possible implementation manners, when the above instruction is executed by the above device, the above device further executes the following steps before executing the step of receiving the audio coded signal from the sending end:

Send a correction signal to the sender.

In one of the possible implementations, when the above-mentioned instruction is executed by the above-mentioned device, the above-mentioned device is caused to execute

The step of decoding the audio coded signal according to the frequency to obtain a binary code stream includes:

In one of the possible implementation manners, when the above instructions are executed by the above device, the steps of enabling the above device to execute if the frame synchronization detection and integrity detection are successful, the data frame is decompressed to obtain a binary code stream including:

It should be understood that the structural schematic diagram of the control signal sending device may be consistent with the structural schematic diagram of the control signal receiving device, and to avoid repetition, detailed descriptions are appropriately omitted here.

An embodiment of the present application also provides an electronic device. The device includes a storage medium and a central processing unit. The storage medium may be a non-volatile storage medium. A computer executable program is stored in the storage medium. The device is connected to the non-volatile storage medium and executes the computer executable program to implement the method provided by the embodiments shown in FIGS. 1 to 3 of this application.

In the above embodiments, the processors involved may include, for example, CPU, DSP, microcontroller or digital signal processor, and may also include GPU, embedded neural network processor (Neural-network Process Units; hereinafter referred to as NPU) and Image signal processing (Image Signal Processing; hereinafter referred to as ISP), which may also include necessary hardware accelerators or logic processing hardware circuits, such as ASIC, or one or more integrated circuits used to control the execution of the technical solutions of this application Circuit etc. In addition, the processor may have a function of operating one or more software programs, and the software programs may be stored in a storage medium.

The embodiment of the present application also provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when it runs on a computer, the computer executes the information provided by the embodiments shown in Figs. 1 to 3 of the present application. method.

The embodiments of the present application also provide a computer program product. The computer program product includes a computer program that, when running on a computer, causes the computer to execute the method provided in the embodiments shown in FIGS. 1 to 3 of the present application.

In the embodiments of the present application, "at least one" refers to one or more, and "multiple" refers to two or more. "And/or" describes the association relationship of the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean that A exists alone, A and B exist at the same time, and B exists alone. Among them, A and B can be singular or plural. The character "/" generally indicates that the associated objects before and after are in an "or" relationship. "The following at least one item" and similar expressions refer to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, and c can represent: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, and c can be single, or There can be more than one.

A person of ordinary skill in the art may be aware that the units and algorithm steps described in the embodiments disclosed herein can be implemented by a combination of electronic hardware, computer software, and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for convenience and concise description, the specific working process of the above-described system, device, and unit can refer to the corresponding process in the foregoing method embodiment, which is not repeated here.

In the several embodiments provided in this application, if any function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory; hereinafter referred to as ROM), random access memory (Random Access Memory; hereinafter referred to as RAM), magnetic disks or optical disks, etc. A medium that can store program codes.

The above are only specific implementations of this application. Any person skilled in the art can easily conceive of changes or substitutions within the technical scope disclosed in this application, and they should all be covered by the protection scope of this application. The protection scope of this application shall be subject to the protection scope of the claims.

Claims

A method for sending a control signal, which is characterized in that it includes:

Detecting the first operation for generating control signaling;

In response to the first operation, generating control signaling, and converting the control signaling into a binary code stream;

Performing audio encoding on the binary code stream to obtain an audio encoding signal;

The audio coded signal is modulated and sent to the receiving end.
The method according to claim 1, wherein said performing audio coding on said binary code stream to obtain an audio coded signal comprises:

Compressing the binary code stream to obtain a data frame, and adding a frame header to the data frame, wherein the frame header includes a synchronization code and a cyclic redundancy check (CRC) code;

The data frame is coded to obtain an audio coded signal.
The method according to claim 1, characterized in that, before the detecting the first operation for generating control signaling, the method further comprises:

In response to the received correction signal, performing signal strength analysis on the correction signal to obtain channel compensation;

The modulating and sending the audio coded signal to the receiving end includes:

The audio coded signal is modulated according to the channel compensation and sent to the receiving end.
The method according to claim 1, characterized in that, after the modulated audio coded signal is sent to the receiving end, the method further comprises:

If a non-acknowledgement message from the receiving end is received, the audio coded signal is retransmitted.
A method for receiving a control signal, which is characterized in that it includes:

Receive the audio coded signal from the sender;

Demodulate the audio coded signal to obtain the frequency of the audio coded signal;

The audio coded signal is decoded according to the frequency to obtain a binary code stream, and the binary code stream is parsed to obtain control signaling.
The method according to claim 5, characterized in that, before the receiving the audio coded signal from the sending end, the method further comprises:

Send a correction signal to the sender.
The method according to claim 5, wherein said decoding said audio coded signal according to said frequency to obtain a binary code stream comprises:

Decode the audio coded signal according to the frequency to obtain a data frame;

Performing frame synchronization detection according to the synchronization code in the frame header of the data frame, and performing integrity detection according to the cyclic redundancy check (CRC) code in the frame header of the data frame;

If the frame synchronization detection and the integrity detection are successful, the data frame is decompressed to obtain a binary code stream.
8. The method according to claim 7, wherein the step of decompressing the data frame to obtain a binary code stream if the frame synchronization detection and the integrity detection are successful includes:

If the frame synchronization detection and integrity detection are successful, the data frame is decompressed to obtain a binary code stream, and an acknowledgement message is sent to the sending end; if the frame synchronization detection or integrity detection fails, a non-acknowledgement is sent to the sending end Message to request the sender to retransmit the data frame.
A device for sending a control signal is characterized in that it comprises:

The detection module is used to detect the first operation for generating control signaling;

A conversion module, configured to generate control signaling in response to the first operation, and convert the control signaling into a binary code stream;

An encoding module, configured to perform audio encoding on the binary code stream to obtain an audio encoded signal;

The sending module is used to modulate the audio coded signal and send it to the receiving end.
The device according to claim 9, wherein the encoding module comprises:

The compression unit is configured to compress the binary code stream to obtain a data frame, and add a frame header to the data frame, wherein the frame header includes a synchronization code and a cyclic redundancy check (CRC) code;

The encoding unit is used to encode the data frame to obtain an audio encoded signal.
The device according to claim 9, wherein the device further comprises:

The compensation module is configured to perform signal strength analysis on the correction signal in response to the received correction signal to obtain channel compensation;

The sending module is further configured to modulate the audio coded signal according to the channel compensation and send it to the receiving end.
The device according to claim 9, wherein the device further comprises:

The retransmission module is configured to retransmit the audio coded signal if a non-acknowledgement message from the receiving end is received.
A control signal receiving device, which is characterized in that it comprises:

The receiving module is used to receive the audio coding signal from the sending end;

A demodulation module, configured to demodulate the audio coded signal to obtain the frequency of the audio coded signal;

The parsing module is used to decode the audio coded signal according to the frequency to obtain a binary code stream, and parse the binary code stream to obtain control signaling.
The device according to claim 13, wherein the device further comprises:

The sending module is used to send a correction signal to the sending end.
The device according to claim 13, wherein the parsing module comprises:

A decoding unit, configured to decode the audio coded signal according to the frequency to obtain a data frame;

A check unit, configured to perform frame synchronization check according to the synchronization code in the frame header of the data frame, and perform integrity check according to the cyclic redundancy check (CRC) code in the frame header of the data frame;

The decompression unit is configured to decompress the data frame to obtain a binary code stream if the frame synchronization check and the integrity check succeed.
The device according to claim 15, wherein the decompression unit is further configured to decompress the data frame if the frame synchronization detection and integrity detection succeeds, to obtain a binary code stream, and send it to the sending end A confirmation message is sent; if the frame synchronization detection or integrity detection fails, a non-confirmation message is sent to the sending end to request the sending end to retransmit the data frame.
A control signal sending device is characterized in that it comprises:

One or more processors; memory; multiple application programs; and one or more computer programs, wherein the one or more computer programs are stored in the memory, and the one or more computer programs include instructions, When the instruction is executed by the device, the device is caused to perform the following steps:

Detecting the first operation for generating control signaling;

In response to the first operation, generating control signaling, and converting the control signaling into a binary code stream;

Performing audio encoding on the binary code stream to obtain an audio encoding signal;

The audio coded signal is modulated and sent to the receiving end.
The control signal sending device according to claim 17, wherein when the instruction is executed by the device, the step of causing the device to perform audio encoding on the binary code stream to obtain an audio encoded signal comprises:

Compressing the binary code stream to obtain a data frame, and adding a frame header to the data frame, wherein the frame header includes a synchronization code and a cyclic redundancy check (CRC) code;

The data frame is coded to obtain an audio coded signal.
The control signal sending device according to claim 17, wherein when the instruction is executed by the device, the device further executes the step of detecting the first operation for generating control signaling before the device executes The following steps:

In response to the received correction signal, performing signal strength analysis on the correction signal to obtain channel compensation;

The modulating and sending the audio coded signal to the receiving end includes:

The audio coded signal is modulated according to the channel compensation and sent to the receiving end.
The control signal sending device according to claim 17, wherein, when the instruction is executed by the device, after the device executes the step of modulating the audio coded signal and sending it to the receiving end, it also executes the following step:

If a non-acknowledgement message from the receiving end is received, the audio coded signal is retransmitted.
A control signal receiving device, characterized in that it comprises:

One or more processors; memory; multiple application programs; and one or more computer programs, wherein the one or more computer programs are stored in the memory, and the one or more computer programs include instructions, When the instruction is executed by the device, the device is caused to perform the following steps:

Receive the audio coded signal from the sender;

Demodulate the audio coded signal to obtain the frequency of the audio coded signal;

The audio coded signal is decoded according to the frequency to obtain a binary code stream, and the binary code stream is parsed to obtain control signaling.
The control signal receiving device according to claim 21, wherein when the instruction is executed by the device, before the device executes the step of receiving the audio coded signal from the sending end, the following steps are further executed:

Send a correction signal to the sender.
The control signal receiving device according to claim 21, wherein when the instruction is executed by the device, the device executes the decoding of the audio coded signal according to the frequency to obtain a binary code stream The steps include:

Decode the audio coded signal according to the frequency to obtain a data frame;

Performing frame synchronization detection according to the synchronization code in the frame header of the data frame, and performing integrity detection according to the cyclic redundancy check (CRC) code in the frame header of the data frame;

If the frame synchronization detection and the integrity detection are successful, the data frame is decompressed to obtain a binary code stream.
The control signal receiving device according to claim 23, wherein when the instruction is executed by the device, the device executes the decompression of the data frame if the frame synchronization detection and integrity detection are successful , The steps to get the binary code stream include:

If the frame synchronization detection and integrity detection are successful, the data frame is decompressed to obtain a binary code stream, and an acknowledgement message is sent to the sending end; if the frame synchronization detection or integrity detection fails, a non-acknowledgement is sent to the sending end Message to request the sender to retransmit the data frame.
A computer-readable storage medium, characterized in that a computer program is stored in the computer-readable storage medium, which when running on a computer, causes the computer to execute the method according to any one of claims 1-8.