WO2023225855A1 - Device control methods and apparatuses, and electronic devices and readable storage media - Google Patents

Abstract

Provided in the present application are device control methods and apparatuses, and electronic devices and readable storage media. A device control method comprises: acquiring text control instruction information; converting the text control instruction information into bit stream data; determining, according to the bit stream data, multi-carrier continuous baseband signals, which are modulated to be orthogonal to each other; modulating the multi-frequency continuous baseband signals into ultrasonic frequency band signals; and sending the ultrasonic frequency band signals by means of a loudspeaker of a first device.

Description

An equipment control method, device, electronic equipment and readable storage medium Technical field

The present disclosure relates to the field of wireless communication technology, and in particular, to an equipment control method, device, electronic equipment and readable storage medium.

Background technique

Long-distance wireless transmission technology (such as 4G technology, 5G technology, etc.) or short-distance wireless transmission technology (such as Bluetooth technology, Wifi technology, etc.) can be used in the wireless communication system.

Ultrasound is a mechanical wave with extremely short wavelength. The wavelength in air is generally shorter than 2 cm. Because of its short wavelength, it is easily lost and scattered in the air, and does not travel as far as audible sound waves and infrasound waves. However, short wavelength makes it easier to obtain anisotropic sound energy, which can be used for cleaning, gravel crushing, sterilization, etc., and can be used in medicine and industry.

When ultrasonic signals serve as a wave to carry information, they have the following shortcomings: low data transmission rate, weak anti-interference ability, and high bit error rate.

Contents of the invention

The present disclosure provides an equipment control method, device, electronic equipment and readable storage medium.

In a first aspect, a device control method is provided, which is executed by the first device. The method includes:

Get text control instruction information;

Convert the text control instruction information into bit stream data;

Determine based on the bit stream data the multi-carrier continuous baseband signals modulated as mutually orthogonal;

Modulating the multi-frequency continuous baseband signal into an ultrasonic band signal;

The ultrasonic band signal is transmitted through a speaker of the first device.

In an exemplary embodiment, the modulating the bit stream data into a mutually orthogonal multi-carrier continuous baseband signal includes:

Orthogonal frequency division multiplexing technology is used to modulate the bit stream data into mutually orthogonal multi-frequency continuous baseband signals.

In an exemplary embodiment, the method further includes:

Multiple frames are determined according to the bit stream data, the multiple frames include the multiple data frames and the data amount frame, the data frame includes a header area and a data area, the header area is used to indicate the data frame The frame number, the data area is part of the data in the bit stream data; the data amount frame is used to indicate the number of data frames.

In an exemplary embodiment, the modulating the multi-carrier continuous baseband signal into multiple ultrasonic band signals includes:

Decompose the multi-carrier continuous baseband signal corresponding to each frame into multiple single-carrier signals, perform inverse transformation and forward transformation on each single-carrier signal, the inverse transformation is the inverse transformation of the forward transformation, and the forward transformation is Conversion from domain to frequency domain.

In an exemplary embodiment, the method further includes:

A check code is set for each frame, and the check code is calculated based on the content in the corresponding frame.

In an exemplary embodiment, the method further includes:

A prefix and/or suffix is added to each frame, and a sequence for channel evaluation is added before each frame.

In an exemplary embodiment, the method further includes:

After receiving the instruction information for instructing to retransmit the data frame with the target frame number, the data frame corresponding to the target frame number is replayed.

In a second aspect, a device control method is executed by a second device. The method includes:

receiving ultrasonic band signals through the microphone of the second device;

Demodulating the ultrasonic band signal into a mutually orthogonal multi-frequency continuous baseband signal;

Demodulating the mutually orthogonal multi-frequency continuous baseband signals into bit stream data;

Convert the bit stream data into text control instruction information;

Identify the instruction corresponding to the text control instruction information;

Execute the instructions.

In an exemplary embodiment, demodulating the mutually orthogonal multi-frequency continuous baseband signals into bit stream data includes:

Orthogonal frequency division multiplexing technology is used to demodulate the mutually orthogonal multi-frequency continuous baseband signals into bit stream data.

In an exemplary embodiment, the method further includes:

The bit stream data is parsed into multiple frames, the multiple frames include a data volume frame and a plurality of data frames, each data frame includes a frame number, and the data volume frame is used to indicate the number of data frames.

In an exemplary embodiment, the method further includes:

The frame is checked according to the check code in the frame to determine whether the frame is a valid frame or an invalid frame.

In an exemplary embodiment, demodulating the ultrasonic band signal into a multi-carrier continuous baseband signal includes:

The single carrier signals in the ultrasonic band signals are respectively subjected to forward transformation and inverse transformation and then combined into multi-carrier continuous baseband signals.

In an exemplary embodiment, the method further includes:

Channel evaluation is performed on the corresponding ultrasonic band signal according to the set sequence, and channel compensation is performed during the demodulation process.

In an exemplary embodiment, the method further includes:

An ultrasonic band signal is sent through the speaker of the second device, and the ultrasonic band signal includes indication information for instructing to retransmit a data frame with a target frame number, where the target frame number is the frame number of the invalid frame.

In a third aspect, an equipment control device is configured in the first equipment, and the device includes:

A processing module configured to obtain text control instruction information; convert the text control instruction information into bit stream data;

A modulation module configured to determine, based on the bit stream data, a multi-carrier continuous baseband signal modulated into a mutually orthogonal multi-carrier continuous baseband signal; and to modulate the multi-frequency continuous baseband signal into an ultrasonic band signal;

A sending module configured to send the ultrasonic band signal through a speaker of the first device.

In a fourth aspect, an equipment control device is configured in a second device, and the device includes:

a receiving module configured to receive the ultrasonic band signal through the microphone of the second device;

A demodulation module configured to demodulate the ultrasonic band signal into a mutually orthogonal multi-frequency continuous baseband signal; and demodulate the mutually orthogonal multi-frequency continuous baseband signal into bit stream data;

A processing module configured to convert the bit stream data into text control instruction information; identify instructions corresponding to the text control instruction information; and execute the instructions.

In a fifth aspect, an electronic device includes a processor and a memory, wherein,

The memory is used to store computer programs;

The processor is configured to execute the computer program to implement the method according to any one of the first aspects.

In a sixth aspect, an electronic device includes a processor and a memory, wherein,

The memory is used to store computer programs;

The processor is configured to execute the computer program to implement the method according to any one of the second aspects.

A seventh aspect, a computer-readable storage medium. Instructions are stored in the computer-readable storage medium. When the instructions are called and executed on a computer, they cause the computer to execute as described in any one of the first aspects. method described.

The eighth aspect, a computer-readable storage medium, the computer-readable storage medium stores instructions, when the instructions are called and executed on a computer, the computer is caused to execute as described in any one of the second aspects. method described.

Using the method in this disclosure, the bit stream corresponding to the control instruction is modulated into a mutually orthogonal multi-carrier continuous baseband signal, and the data transmission rate corresponding to the multi-carrier modulation method is used to be greater than the data transmission rate corresponding to the single-carrier modulation method, thereby improving Ultrasonic waves control the transmission rate of data.

Description of the drawings

The drawings described here are used to provide a further understanding of the embodiments of the present disclosure and constitute a part of this application. The schematic embodiments of the embodiments of the present disclosure and their descriptions are used to explain the embodiments of the present disclosure and do not constitute an explanation of the embodiments of the present disclosure. undue limitation. In the attached picture:

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with embodiments of the disclosure and together with the description, serve to explain principles of embodiments of the disclosure.

Figure 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present disclosure;

Figure 2 is a flow chart of a device control method according to an exemplary embodiment;

Figure 3 is a flow chart of a device control method according to an exemplary embodiment;

Figure 4 is a flow chart of a device control method according to an exemplary embodiment;

Figure 5 is a flow chart of a device control method according to an exemplary embodiment;

Figure 6 is a schematic diagram of a signal format according to an exemplary embodiment;

Figure 7 is a flow chart of a device control method according to an exemplary embodiment;

Figure 8 is a flow chart of a device control method according to an exemplary embodiment;

Figure 9 is a flow chart of a device control method according to an exemplary embodiment;

Figure 10 is a flow chart of a device control method according to an exemplary embodiment;

Figure 11 is a schematic diagram of channel assessment according to an exemplary embodiment;

Figure 12 is a block diagram of an equipment control device according to an exemplary embodiment;

Figure 13 is a block diagram of an equipment control device according to an exemplary embodiment;

Figure 14 is a block diagram of a terminal according to an exemplary embodiment;

Detailed ways

The embodiments of the present disclosure will now be further described with reference to the accompanying drawings and specific implementation modes.

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with embodiments of the present disclosure. Rather, they are merely examples of apparatus and methods consistent with aspects of the disclosure as detailed in the appended claims.

The terminology used in the embodiments of the present disclosure is for the purpose of describing specific embodiments only and is not intended to limit the embodiments of the present disclosure. As used in the embodiments of the present disclosure and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be called second information, and similarly, the second information may also be called first information. Depending on the context, the words "if" and "if" as used herein may be interpreted as "when" or "when" or "in response to determining."

Embodiments of the present disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present disclosure and are not to be construed as limitations of the present disclosure.

In environments without wireless networks and remote control devices, you can consider using ultrasonic waves to wirelessly control certain devices. For example: in some implementations, the sender converts the target information into a binary bit stream according to the ASCII code, performs BFSK modulation on the bit stream, and sends the modulated data, and the receiver performs reverse processing to obtain the target information. This method has the disadvantages of low data transmission rate, weak anti-interference ability, and high bit error rate.

A device control method provided by an embodiment of the present disclosure can be applied in the communication architecture as shown in Figure 1, in which the first device is the controlling party and the second device is the controlled party. The first device controls the second device by sending ultrasonic signals carrying control instructions. The first device includes a transmitting device (such as a speaker) for transmitting ultrasonic signals, and the second device includes a receiving device (such as a microphone) for receiving ultrasonic signals. Alternatively, both the first device and the second device include a sending device for sending ultrasonic signals and a receiving device for receiving ultrasonic signals.

In an example, the first device is a mobile phone and the second device is a smart TV. In another example, the first device is a mobile phone, and the second device is also a mobile phone. It can be understood that the first device and the second device are not limited to the devices in the above examples.

The embodiment of the present disclosure provides a device control method. Figure 2 is a flow chart of a device control method according to an exemplary embodiment. It is executed by the first device and includes steps S201 to S205, specifically:

Step S201: Obtain text control instruction information.

The method for obtaining text control instruction information in this step includes one of the following:

Receive text content input on the setting interface and determine that the text content is text control instruction information;

Receive voice control information, identify the text content in the voice control information, and determine that the text content is text control instruction information;

Receive the touch command, determine the text content corresponding to the touch command, and determine the text content as text control command information.

Wherein, the first device may be installed with an APP for controlling other devices through ultrasonic waves. When the user needs to control the device through ultrasound, after opening the APP, the APP can provide at least one of the above functions.

Step S202: Convert the text control instruction information into bit stream data.

The method of converting the text control instruction information into bit stream data may be to convert according to the ASCII code comparison table.

Step S203: Determine multi-carrier continuous baseband signals modulated into mutually orthogonal baseband signals based on the bit stream data.

In some possible implementations, Orthogonal Frequency Division Multiplexing (OFDM) technology is used to modulate the bit stream data into mutually orthogonal multi-frequency continuous baseband signals.

Step S204: Modulate the multi-frequency continuous baseband signal into an ultrasonic band signal.

Step S205: Send the ultrasonic band signal through the speaker of the first device.

In the embodiment of the present disclosure, the bit stream corresponding to the control instruction is modulated into a mutually orthogonal multi-carrier continuous baseband signal, and the data transmission rate corresponding to the multi-carrier modulation method is used to be greater than the data transmission rate corresponding to the single-carrier modulation method to improve the ultrasonic wave. Control the data transfer rate.

The embodiment of the present disclosure provides a device control method. Figure 3 is a flow chart of a device control method according to an exemplary embodiment. It is executed by the first device and includes steps S301 to S306, specifically:

Step S301: Obtain text control instruction information.

The method of obtaining the text control instruction information in step S301 is the same as that in step S201.

Step S302: Convert the text control instruction information into bit stream data.

The method of converting the text control instruction information into bit stream data in step S302 is the same as that in step S202.

Step S303: Determine multiple frames according to the bit stream data. The multiple frames include the multiple data frames and the data amount frame. The data frame includes a header area and a data area. The header area is used to Indicates the frame number of the data frame, and the data area is part of the data in the bit stream data. The data amount frame is used to indicate the number of data frames.

For example: the bit stream data is divided into multiple groups, each group corresponds to a data frame, a frame number is added to each data frame, and a data frame amount is set.

In an example, the bitstream data has a total of N bits of data, and the data is divided into N/16+1 groups of data. Each group corresponds to one frame, where N/16 corresponds to the fact that each frame of ultrasonic data will carry 16 bits of data, and an additional data amount frame is set to indicate the number of data frames. After the grouping is completed, a frame number is set for each frame of data, and X bits are added to the front of each frame of data to indicate the frame number.

Among them, when setting the frame number for each data frame, a header area is added at the front of each data frame, and the frame number is stored in the header area.

After the bit stream data is grouped in this step, and a frame number is set for each frame of data, the second device can determine whether to accurately receive each frame of data based on the frame number, thereby ensuring the integrity and accuracy of data transmission.

Step S304: Determine multi-carrier continuous baseband signals modulated into mutually orthogonal baseband signals based on the bit stream data.

In some possible implementations, Orthogonal Frequency Division Multiplexing (OFDM) technology is used to modulate the bit stream data into mutually orthogonal multi-frequency continuous baseband signals.

In this step S304, the data frame and each data frame are modulated separately, so that each frame corresponds to a multi-carrier continuous baseband signal.

Step S305: Modulate the multi-frequency continuous baseband signal into an ultrasonic band signal.

In one embodiment, the multi-carrier continuous baseband signal corresponding to each frame is decomposed into multiple single-carrier signals, and inverse transformation and forward transformation are performed on each single-carrier signal, and the inverse transformation is the inverse transformation of the forward transformation, The forward transformation is a transformation from time domain to frequency domain.

Among them, the forward transformation can be FFT, and the inverse transformation can be IFFT.

Step S306: Send the ultrasonic band signal through the speaker of the first device.

The embodiment of the present disclosure provides a device control method. Figure 4 is a flow chart of a device control method according to an exemplary embodiment. It is executed by the first device and includes steps S401 to S407, specifically:

Step S401: Obtain text control instruction information.

The method of obtaining the text control instruction information in step S401 is the same as that in step S201.

Step S402: Convert the text control instruction information into bit stream data.

The method of converting the text control instruction information into bit stream data in step S402 is the same as that in step S202.

Step S403: Divide the bit stream data into multiple data frames, add a frame number to each data frame, and set a data amount frame, where the data amount frame is used to indicate the number of data frames.

The specific content in step S403 is the same as that in step S303.

Step S404: Set a check code for each frame, where the check code is calculated based on the content in the corresponding frame.

In one example, a tail area is added at the back end of each frame, and the check code is stored in the tail area.

In one example, the check code can be a cyclic redundancy check code (CRC). This CRC can be used for error checking. The CRC performs polynomial calculation on the data in the frame to obtain the CRC, and the receiving device performs the corresponding polynomial calculation. The reverse process can verify the correctness of the data. In the event of verification failure, retransmission of the corresponding frame may be instructed.

Therefore, after receiving the instruction information for instructing to retransmit the data frame with the target frame number, the first device replays the data frame corresponding to the target frame number.

Step S405: Determine multi-carrier continuous baseband signals modulated into mutually orthogonal baseband signals based on the bit stream data.

Step S406: Modulate the multi-frequency continuous baseband signal into an ultrasonic band signal.

Step S407: Send the ultrasonic band signal through the speaker of the first device.

The embodiment of the present disclosure provides a device control method. Figure 5 is a flow chart of a device control method according to an exemplary embodiment. It is executed by the first device and includes steps S501 to S507, specifically:

Step S501: Obtain text control instruction information.

The method of obtaining the text control instruction information in step S501 is the same as that in step S201.

Step S502: Convert the text control instruction information into bit stream data.

The method of converting the text control instruction information into bit stream data in step S502 is the same as that in step S202.

Step S503: Divide the bit stream data into multiple data frames, add a frame number to each data frame, and set a data amount frame, where the data amount frame is used to indicate the number of data frames.

The specific content in step S503 is the same as that in step S303.

Step S504: Add a prefix and/or suffix to each frame, and add a sequence for channel evaluation before each frame.

In an example, a prefix is added to the front of each frame, a sequence for channel evaluation is added adjacently before the prefix, and a prefix is added to the front of the sequence for channel evaluation at the same time. The order of each frame is: prefix, for channel Evaluated sequences, prefixes, data.

In an example, a suffix is added to the back end of each frame, a sequence for channel evaluation is added to the front end of each frame, and a suffix is added to the back end of the sequence for channel evaluation. The order of each frame is: for Sequence, suffix, data, suffix for channel evaluation.

In an example, a prefix is added to the front end of each frame, a suffix is added to the back end of each frame, a sequence for channel evaluation is added to the front end of the added prefix, and at the same time, a sequence for channel evaluation is added to the front end of the sequence and The backend adds prefixes and suffixes respectively. Figure 6 is a schematic diagram of a signal format according to an exemplary embodiment. As shown in Figure 6, the order of each frame is: prefix, sequence for channel evaluation, suffix, prefix , data, suffix.

In an example, the sequence used for channel evaluation is an LTF sequence (long training field, long training code sequence).

Therefore, after receiving the instruction information for instructing to retransmit the data frame with the target frame number, the first device replays the data frame corresponding to the target frame number.

Step S505: Determine multi-carrier continuous baseband signals modulated into mutually orthogonal baseband signals based on the bit stream data.

Step S506: Modulate the multi-frequency continuous baseband signal into an ultrasonic band signal.

Step S507: Send the ultrasonic band signal through the speaker of the first device.

Among them, the specific content in step S505 to step S507 is the same as that in step S203 to step S205.

An embodiment of the present disclosure provides a device control method. Figure 7 is a flow chart of a device control method according to an exemplary embodiment. It is executed by a second device and includes steps S701 to S706, specifically:

Step S701: Receive ultrasonic band signals through the microphone of the second device.

In one example, the sound receiver of the second device is a microphone of the second device, which performs filtering on the received signal to filter out low-frequency band signals and only retain ultrasonic band signals.

Step S702: Demodulate the ultrasonic band signal into a mutually orthogonal multi-frequency continuous baseband signal.

In some possible implementations, the single carrier signals in the ultrasonic band signals are respectively subjected to forward transformation and inverse transformation and then combined into a multi-carrier continuous baseband signal.

In one example, the ultrasonic frequency band signal corresponding to each frame is decomposed into multiple single carrier signals, and each single carrier signal is subjected to forward transformation and inverse transformation. The inverse transformation is the inverse transformation of the forward transformation, and the Forward transformation is the transformation from time domain to frequency domain.

Among them, the forward transformation can be FFT, and the inverse transformation can be IFFT.

Step S703: Demodulate the mutually orthogonal multi-frequency continuous baseband signals into bit stream data.

In some possible implementations, orthogonal frequency division multiplexing technology is used to demodulate the mutually orthogonal multi-frequency continuous baseband signals into bit stream data.

Step S704: Convert the bit stream data into text control instruction information.

In one example, the bit stream data is converted into text control instruction information according to the ASCII code comparison table, and is displayed on the interface of the second device.

Step S705: Identify the instruction corresponding to the text control instruction information.

Step S706, execute the instruction.

The embodiment of the present disclosure provides a device control method. Figure 8 is a flow chart of a device control method according to an exemplary embodiment. It is executed by the second device and includes steps S801 to S807, specifically:

Step S801: Receive ultrasonic band signals through the microphone of the second device.

Step S802: Demodulate the ultrasonic band signal into a mutually orthogonal multi-frequency continuous baseband signal.

Step S803: Demodulate the mutually orthogonal multi-frequency continuous baseband signals into bit stream data.

Among them, the specific contents in step S801 to step S803 are the same as those in step S701 to step S703.

Step S804: Parse the bit stream data into multiple frames. The multiple frames include a data amount frame and multiple data frames. Each data frame includes a frame number. The data amount frame is used to indicate the size of the data frame. quantity.

Based on the frame number of each data frame, the number of received frames is determined and whether the number is the same as the received data amount frame.

Step S805: Convert the bit stream data into text control instruction information.

The specific content in step S805 is the same as that in step S804.

Step S806: Identify the instruction corresponding to the text control instruction information.

Step S807, execute the instruction.

The embodiment of the present disclosure provides a device control method. Figure 9 is a flow chart of a device control method according to an exemplary embodiment. It is executed by a second device and includes steps S901 to S908, specifically:

Step S901: Receive ultrasonic band signals through the microphone of the second device.

Step S902: Demodulate the ultrasonic band signal into a mutually orthogonal multi-frequency continuous baseband signal.

Step S903: Demodulate the mutually orthogonal multi-frequency continuous baseband signals into bit stream data.

Step S904: Parse the bit stream data into multiple frames. The multiple frames include a data amount frame and multiple data frames. Each data frame includes a frame number. The data amount frame is used to indicate the size of the data frame. quantity.

Among them, the specific contents in steps S901 to S904 are the same as those in steps S801 to S804.

Step S905: Check the frame according to the check code in the frame to determine whether the frame is a valid frame or an invalid frame.

In an example, the check code stored in the tail area of each frame is checked.

In one example, the check code is a cyclic redundancy check code, and an inverse process of polynomial calculation is performed on the check code of each frame to verify the correctness of the data. Frames with correct check codes are valid frames, and frames with incorrect check codes are invalid frames.

In an example, when the frame is a valid frame, the frame number of the frame is saved in the valid frame sequence; when the frame is an invalid frame, the frame is saved in the invalid frame sequence until the first device resends it. The frame, and the resent frame is a valid frame, is then saved to the valid frame sequence. When the length of the valid frame sequence is the same as the number in the received data volume frame, the valid frame sequence is sorted and the valid frame sequence is cleared at the same time.

In some possible implementations, when the frame is an invalid frame, an ultrasonic band signal is sent through the speaker of the second device, and the ultrasonic band signal includes indication information for indicating the data frame of the retransmission target frame number. , the target frame number is the frame number of the invalid data frame.

Step S906: Convert the bit stream data into text control instruction information.

The specific content in step S906 is the same as that in step S805.

Step S907: Identify the instruction corresponding to the text control instruction information.

Step S908, execute the instruction.

An embodiment of the present disclosure provides a device control method. Figure 10 is a flow chart of a device control method according to an exemplary embodiment. It is executed by a second device and includes steps S1001 to S1008, specifically:

Step S1001: Receive ultrasonic band signals through the microphone of the second device.

Step S1002: Perform channel evaluation on the corresponding ultrasonic band signal according to each setting sequence, and perform channel compensation during the demodulation process.

In an example, Figure 11 is a schematic diagram of channel assessment according to an exemplary embodiment. As shown in Figure 11, the setting sequence is added by the first device, and the corresponding ultrasonic band signal is channeled according to the setting sequence. Evaluate.

Step S1003: Demodulate the ultrasonic band signal into a mutually orthogonal multi-frequency continuous baseband signal.

Step S1004: Demodulate the mutually orthogonal multi-frequency continuous baseband signals into bit stream data.

Step S1005, parse the bit stream data into multiple frames. The multiple frames include a data amount frame and multiple data frames. Each data frame includes a frame number. The data amount frame is used to indicate the size of the data frame. quantity.

Step S1006: Convert the bit stream data into text control instruction information.

Step S1007: Identify the instruction corresponding to the text control instruction information.

Step S1008, execute the instruction.

In an exemplary embodiment of the present disclosure, an equipment control device is provided, which is configured in a first device. Figure 12 is a block diagram of an equipment control device according to an exemplary embodiment. As shown in Figure 12, it includes: The device includes:

The processing module 1201 is configured to obtain text control instruction information; convert the text control instruction information into bit stream data;

The modulation module 1202 is configured to determine, based on the bit stream data, a multi-carrier continuous baseband signal that is modulated into a mutually orthogonal baseband signal; and modulate the multi-frequency continuous baseband signal into an ultrasonic band signal;

The sending module 1203 is configured to send the ultrasonic band signal through the speaker of the first device.

In an exemplary embodiment of the present disclosure, an equipment control device is provided, configured in a second device. Figure 13 is a block diagram of an equipment control device according to an exemplary embodiment. As shown in Figure 13, it includes: The devices include:

The receiving module 1301 is configured to receive the ultrasonic band signal through the microphone of the second device;

Demodulation module 1302 is configured to demodulate the ultrasonic band signal into a mutually orthogonal multi-frequency continuous baseband signal; and demodulate the mutually orthogonal multi-frequency continuous baseband signal into bit stream data;

The processing module 1303 is configured to convert the bit stream data into text control instruction information; identify instructions corresponding to the text control instruction information; and execute the instructions.

Regarding the devices in the above embodiments, the specific manner in which each module performs operations has been described in detail in the embodiments related to the method, and will not be described in detail here.

When the electronic device is a terminal, FIG. 14 is a block diagram of a terminal 1400 according to an exemplary embodiment.

Referring to Figure 14, the terminal 1400 may include one or more of the following components: a processing component 1402, a memory 1404, a power supply component 1406, a multimedia component 1408, an audio component 1410, an input/output (I/O) interface 1412, a sensor component 1414, and communications component 1416.

Processing component 1402 generally controls the overall operations of terminal 1400, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 1402 may include one or more processors 1420 to execute instructions to complete all or part of the steps of the above method. Additionally, processing component 1402 may include one or more modules that facilitate interaction between processing component 1402 and other components. For example, processing component 1402 may include a multimedia module to facilitate interaction between multimedia component 1408 and processing component 1402.

Memory 1404 is configured to store various types of data to support operations at device 1400 . Examples of such data include instructions for any application or method operating on the terminal 1400, contact data, phonebook data, messages, pictures, videos, etc. Memory 1404 may be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EEPROM), Programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

Power supply component 1406 provides power to various components of terminal 1400. Power supply components 1406 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to terminal 1400.

Multimedia component 1408 includes a screen that provides an output interface between the terminal 1400 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide action. In some embodiments, multimedia component 1408 includes a front-facing camera and/or a rear-facing camera. When the device 1400 is in an operating mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front-facing camera and rear-facing camera can be a fixed optical lens system or have a focal length and optical zoom capabilities.

Audio component 1410 is configured to output and/or input audio signals. For example, audio component 1410 includes a microphone (MIC) configured to receive external audio signals when terminal 1400 is in operating modes, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 1404 or sent via communications component 1416 . In some embodiments, audio component 1410 also includes a speaker for outputting audio signals.

The I/O interface 1412 provides an interface between the processing component 1402 and a peripheral interface module. The peripheral interface module may be a keyboard, a click wheel, a button, etc. These buttons may include, but are not limited to: Home button, Volume buttons, Start button, and Lock button.

Sensor component 1414 includes one or more sensors that provide various aspects of status assessment for terminal 1400 . For example, the sensor component 1414 can detect the open/closed state of the device 1400, the relative positioning of components, such as the display and keypad of the terminal 1400, and the sensor component 1414 can also detect the position change of the terminal 1400 or a component of the terminal 1400. , the presence or absence of user contact with the terminal 1400, the terminal 1400 orientation or acceleration/deceleration and the temperature change of the terminal 1400. Sensor assembly 1414 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 1414 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 1414 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 1416 is configured to facilitate wired or wireless communication between the terminal 1400 and other devices. The terminal 1400 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 1416 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communications component 1416 also includes a near field communications (NFC) module to facilitate short-range communications. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

In an exemplary embodiment, terminal 1400 may be configured by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable Gate array (FPGA), controller, microcontroller, microprocessor or other electronic components are implemented for executing the above method.

In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions, such as a memory 1404 including instructions, which can be executed by the processor 1420 of the terminal 1400 to complete the above method is also provided. For example, the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

A computer-readable storage medium. Instructions are stored in the computer-readable storage medium. When the instructions are called and executed on a computer, they cause the computer to execute a device control method. The method includes any of the above. Methods in Examples.

Other embodiments of the invention will be readily apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary technical means in the technical field that are not disclosed in the present disclosure. . It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It is to be understood that the present invention is not limited to the precise construction described above and illustrated in the accompanying drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Industrial applicability

In this disclosure, the bit stream corresponding to the control instruction is modulated into a mutually orthogonal multi-carrier continuous baseband signal, and the data transmission rate corresponding to the multi-carrier modulation method is greater than the data transmission rate corresponding to the single-carrier modulation method, so as to improve the ultrasonic control data transmission rate.

Claims (20)

A device control method, executed by the first device, the method includes: Get text control instruction information; Convert the text control instruction information into bit stream data; Determine based on the bit stream data the multi-carrier continuous baseband signals modulated as mutually orthogonal; Modulating the multi-frequency continuous baseband signal into an ultrasonic band signal; The ultrasonic band signal is transmitted through a speaker of the first device. The method of claim 1, wherein modulating the bit stream data into mutually orthogonal multi-carrier continuous baseband signals includes: Orthogonal frequency division multiplexing technology is used to modulate the bit stream data into mutually orthogonal multi-frequency continuous baseband signals. The method according to claim 1 or 2, characterized in that the method further includes: Multiple frames are determined according to the bit stream data, the multiple frames include the multiple data frames and the data amount frame, the data frame includes a header area and a data area, the header area is used to indicate the data frame The frame number, the data area is part of the data in the bit stream data; the data amount frame is used to indicate the number of data frames. The method of claim 3, wherein modulating the multi-carrier continuous baseband signal into multiple ultrasonic band signals includes: Decompose the multi-carrier continuous baseband signal corresponding to each frame into multiple single-carrier signals, perform inverse transformation and forward transformation on each single-carrier signal, the inverse transformation is the inverse transformation of the forward transformation, and the forward transformation is Conversion from domain to frequency domain. The method of claim 3, further comprising: A check code is set for each frame, and the check code is calculated based on the content in the corresponding frame. The method of claim 3, further comprising: A prefix and/or suffix is added to each frame, and a sequence for channel evaluation is added before each frame. The method according to any one of claims 3 to 6, characterized in that the method further includes: After receiving the instruction information for instructing to retransmit the data frame with the target frame number, the data frame corresponding to the target frame number is replayed. A device control method, executed by a second device, the method includes: receiving ultrasonic band signals through the microphone of the second device; Demodulating the ultrasonic band signal into a mutually orthogonal multi-frequency continuous baseband signal; Demodulating the mutually orthogonal multi-frequency continuous baseband signals into bit stream data; Convert the bit stream data into text control instruction information; Identify the instruction corresponding to the text control instruction information; Execute the instructions. The method of claim 8, wherein demodulating the mutually orthogonal multi-frequency continuous baseband signals into bit stream data includes: Orthogonal frequency division multiplexing technology is used to demodulate the mutually orthogonal multi-frequency continuous baseband signals into bit stream data. The method according to any one of claims 8 or 9, characterized in that the method further includes: The bit stream data is parsed into multiple frames, the multiple frames include a data volume frame and a plurality of data frames, each data frame includes a frame number, and the data volume frame is used to indicate the number of data frames. The method of claim 10, further comprising: The frame is checked according to the check code in the frame to determine whether the frame is a valid frame or an invalid frame. The method of claim 10, wherein demodulating the ultrasonic band signal into a multi-carrier continuous baseband signal includes: The single carrier signals in the ultrasonic band signals are respectively subjected to forward transformation and inverse transformation and then combined into multi-carrier continuous baseband signals. The method of claim 12, further comprising: Channel evaluation is performed on the corresponding ultrasonic band signal according to the set sequence, and channel compensation is performed during the demodulation process. The method of claim 11, further comprising: An ultrasonic band signal is sent through the speaker of the second device, and the ultrasonic band signal includes indication information for instructing to retransmit a data frame with a target frame number, where the target frame number is the frame number of the invalid frame. An equipment control device, configured in the first equipment, the device includes: A processing module configured to obtain text control instruction information; convert the text control instruction information into bit stream data; A modulation module configured to determine, based on the bit stream data, a multi-carrier continuous baseband signal modulated into a mutually orthogonal multi-carrier continuous baseband signal; and to modulate the multi-frequency continuous baseband signal into an ultrasonic band signal; A sending module configured to send the ultrasonic band signal through a speaker of the first device. An equipment control device, configured in a second device, the device includes: a receiving module configured to receive the ultrasonic band signal through the microphone of the second device; A demodulation module configured to demodulate the ultrasonic band signal into a mutually orthogonal multi-frequency continuous baseband signal; and demodulate the mutually orthogonal multi-frequency continuous baseband signal into bit stream data; A processing module configured to convert the bit stream data into text control instruction information; identify instructions corresponding to the text control instruction information; and execute the instructions. An electronic device including a processor and a memory, wherein, The memory is used to store computer programs; The processor is used to execute the computer program to implement the method according to any one of claims 1-7. An electronic device including a processor and a memory, wherein, The memory is used to store computer programs; The processor is used to execute the computer program to implement the method according to any one of claims 8-14. A computer-readable storage medium in which instructions are stored. When the instructions are called and executed on a computer, they cause the computer to execute the method described in any one of claims 1-7. method. A computer-readable storage medium in which instructions are stored. When the instructions are called and executed on a computer, they cause the computer to execute the method described in any one of claims 8-14. method.

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