WO2020015297A1

WO2020015297A1 - Directional broadcasting method, apparatus, household appliance, and computer readable storage medium

Info

Publication number: WO2020015297A1
Application number: PCT/CN2018/121702
Authority: WO
Inventors: 韩雪; 王慧君; 王子
Original assignee: 珠海格力电器股份有限公司
Priority date: 2018-07-19
Filing date: 2018-12-18
Publication date: 2020-01-23
Also published as: CN109217943A

Abstract

Provided in the present disclosure are a directional broadcasting method, an apparatus, a household appliance, and a computer readable storage medium, the directional broadcasting method comprising: acquiring orientation information of an object to be directed; loading an audio signal into a high-frequency signal to obtain a modulation signal; and broadcasting the modulation signal to the object to be directed. Since a high-frequency signal has the feature of directional propagation, modulating an audio signal into a high-frequency signal for transmission achieves directional transmission in the air, and auto-demodulation is finally achieved in the air such that the ears may hear a reduced audio signal, thereby solving the problem of targetedly performing voice directional propagation according to the position at which a user is located.

Description

Directed broadcast method, device, household appliance and computer-readable storage medium

Cross-reference to related applications

This application is based on an application with a CN application number of 201810798383.X and an application date of July 19, 2018, and claims its priority. The disclosure of the CN application is incorporated herein as a whole.

Technical field

The present disclosure relates to the technical field of audio transmission, and in particular, to a directional broadcast method, device, home appliance, and computer-readable storage medium.

Background technique

Existing voice broadcasts mostly use traditional speakers to output sound. Traditional speakers can't effectively control the transmission direction and area of sound. The sound waves are distributed to a 360-degree sphere, which has large loss, no directivity, and many noises. When multiple users listen, it may affect users who do not want to hear the announcement.

Related methods of directional broadcasting of speech, such as those used in directional sound transmission televisions, are controlled by sound insulation materials or speaker arrays, and the direction of sound propagation is controlled by physical adjustment of the sound.

Summary of the invention

According to an aspect of some embodiments of the present disclosure, a directional broadcasting method is provided, which includes: obtaining position information of an object to be oriented; loading an audio signal into a high-frequency signal to obtain a modulated signal; and broadcasting a modulated signal to the object to be oriented .

In some embodiments, obtaining the orientation information of the object to be oriented includes: establishing a virtual model of the object to be oriented in the direction of the camera of the mobile terminal; making the virtual model move with the movement of the camera; when the virtual model and the camera capture the When the images of the object to be oriented overlap, the orientation of the object to be oriented is obtained.

In some embodiments, obtaining the orientation of the object to be oriented includes: when the virtual model coincides with the image of the object to be oriented captured by the camera, obtaining the relative position of the object to be oriented and the mobile terminal; according to the real-time position of the mobile terminal, and the to be oriented The relative position of the object and the mobile terminal determines the orientation of the object to be oriented.

In some embodiments, the orientation of the object to be oriented includes the position of the object to be oriented, and acquiring the position of the object to be oriented includes: obtaining the current coordinates of the camera and / or the gyroscope of the mobile terminal; and according to the current coordinates of the camera and / or the gyroscope Determine the position of the object to be oriented.

In some embodiments, determining the position of the object to be oriented according to the current coordinates of the camera and / or the gyroscope includes: when the mobile terminal is located at the position of the object to be oriented, the current coordinates of the camera and / or the gyroscope are the object to be oriented Or, if the mobile terminal is not located at the position of the object to be oriented, determine the position of the object to be oriented based on the SLAM and the current coordinates of the camera and / or the gyroscope.

In some embodiments, the orientation of the object to be oriented includes the direction of the object to be oriented, and obtaining the direction of the object to be oriented includes: obtaining the central axis information of the virtual model that coincides with the object to be oriented; and acquiring the relative to the object according to the central axis information The angle of the electronic device for directional broadcast, and the angle is used as the direction of the object to be oriented.

In some embodiments, the orientation of the object to be oriented includes the direction of the object to be oriented, and obtaining the direction of the object to be oriented includes: obtaining the angle of the mobile terminal relative to the electronic device of the directional broadcast through a mobile terminal located at the position of the object to be oriented; The angle is used as the direction of the object to be directed.

In some embodiments, the high-frequency signal is an ultrasonic signal.

According to an aspect of other embodiments of the present disclosure, a directional broadcast device is provided, including: an acquisition module configured to acquire azimuth information of an object to be oriented: a modulation module configured to load an audio signal to a high-frequency signal To obtain a modulated signal; a broadcast module is configured to broadcast a modulated signal to an object to be oriented.

In some embodiments, the obtaining module includes: a establishing unit configured to establish a virtual model of the object to be oriented in a direction facing the camera of the mobile terminal; a mobile unit configured to cause the virtual model to move with the movement of the camera; The obtaining unit is configured to obtain the orientation of the object to be oriented when the virtual model and the image of the object to be oriented are captured by the camera.

In some embodiments, the obtaining unit is configured to: when the virtual model and the image of the object to be oriented captured by the camera coincide, obtain the relative position of the object to be oriented and the mobile terminal; according to the real-time position of the mobile terminal, and the object to be oriented and The relative position of the mobile terminal determines the orientation of the object to be oriented.

In some embodiments, the orientation of the object to be oriented includes the position of the object to be oriented, and the obtaining module is further configured to obtain the current coordinates of the camera and / or the gyroscope of the mobile terminal; and determine the to be determined according to the current coordinates of the camera and / or the gyroscope Location of the object.

In some embodiments, the orientation of the object to be oriented includes the direction of the object to be oriented, and the acquisition module is further configured to obtain the center axis information of the virtual model that coincides with the object to be oriented; and acquire the object to be oriented relative to the orientation according to the center axis information The angle of the broadcasted electronic device. The angle is used as the direction of the object to be oriented.

In some embodiments, the orientation of the to-be-oriented object includes the direction of the to-be-oriented object, and obtaining the direction of the to-be-oriented object includes: obtaining, through a mobile terminal located at the to-be-oriented object, the angle of the mobile terminal with respect to the electronic device for directional broadcast; The angle is sent to the directional broadcast electronic device, and the angle is used as the direction of the object to be oriented.

In some embodiments, the high-frequency signal is an ultrasonic signal.

According to an aspect of still other embodiments of the present disclosure, there is provided a home appliance including: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by one processor , The instructions are executed by at least one processor, so that the at least one processor executes any one of the foregoing directed broadcast methods.

According to an aspect of still other embodiments of the present disclosure, there is provided a computer-readable storage medium having computer instructions stored thereon, characterized in that when the instructions are executed by a processor, any one of the foregoing directed broadcast methods is implemented.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the specific embodiments of the present disclosure or the technical solutions in the prior art, the accompanying drawings used in the specific embodiments or the description of the prior art will be briefly introduced below. Obviously, the appendixes in the following description The drawings are some embodiments of the present disclosure. For a person of ordinary skill in the art, other drawings can be obtained based on the drawings without paying creative labor.

FIG. 1 is a flowchart of a directed broadcast method according to some embodiments of the present disclosure;

2 is another flowchart of a directional broadcast method according to some embodiments of the present disclosure;

3 is a structural block diagram of a directional broadcast apparatus according to some embodiments of the present disclosure;

FIG. 4 is a schematic diagram of a hardware structure of a home appliance provided by some embodiments of the present disclosure.

detailed description

In order to make the objectives, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions in the embodiments of the present disclosure will be described clearly and completely in combination with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments These embodiments are part of, but not all of, the embodiments of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor fall into the scope of protection of the present disclosure.

The inventor found that in the related directional playback method, the direction of the sound is limited to a fixed area, and the user can only go to the area to listen to the sound, instead of the device adapting to the user, it is not user-friendly, and it cannot be targeted according to the location of the user Sexually perform voice-directed playback.

According to an embodiment of the present disclosure, an embodiment of a directed broadcast method is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. The logical order is shown in the flowchart, but in some cases, the steps shown or described may be performed in a different order than here.

The directed broadcast method provided in this embodiment can be used for various household appliances, such as air conditioners, air purifiers, etc. FIG. 1 is a flowchart of the directed broadcast method according to an embodiment of the present disclosure. As shown in FIG. 1, the directed broadcast method The method flow includes the following steps:

In step S101, orientation information of an object to be oriented is acquired. It should be noted that the azimuth information of the object can be obtained in various ways, which will be described below by way of example.

A virtual model of the object to be oriented is established in the direction of the camera of the mobile terminal. Specifically, the AR augmented reality technology is used to add a virtual identification to the position of the object to be oriented on the display screen of the mobile terminal.

In some embodiments, an APP for establishing a virtual model for an object to be oriented may be downloaded in advance on a mobile terminal. The APP may establish various virtual models for different objects to be oriented, such as 1: 1 Virtual model. Then start the APP and start the camera scanning of the mobile terminal for lens scanning. You can determine whether a preset object, such as the ground, is scanned as a starting signal for establishing a virtual model of the object to be oriented. Once scanned to the ground, The APP on the mobile terminal automatically establishes a virtual model of the object to be oriented.

The virtual model is caused to move with the movement of the camera. When the virtual model and the image of the object to be oriented captured by the camera coincide, the orientation of the object to be oriented is obtained. In some embodiments, real-time positioning and map construction (simultaneous localization and mapping) technology can be used to obtain image frames in real time, and the camera is moved so that the object to be oriented appears within the visible range of the camera, and then the The virtual model approaches the object to be oriented. In some embodiments, the camera can continue to be moved so that the virtual model moves with the camera. If the screen of the mobile terminal is a touchable screen, the camera can also be kept still at this time, and the virtual model on the camera can be moved until The virtual model coincides with the object to be oriented. For example, when the center axis of the virtual model coincides with the center axis of the image of the object to be oriented captured by the camera, the virtual model and the object to be oriented can be considered to be coincident.

It should be noted that the above-mentioned mobile terminal may be the object to be oriented itself, or may be another mobile terminal capable of positioning the object to be oriented. If the mobile terminal is the object to be oriented, the positioning function of the mobile terminal can be used to send the position of the mobile terminal to the electronic device that performs the directed broadcast; if the mobile terminal is another mobile terminal for positioning the object to be oriented, it can be used The mobile terminal determines the position of the object to be oriented, and sends the position of the object to be oriented to the electronic device performing the directed broadcast.

The positioning method of this embodiment combines a camera and a virtual model on a mobile terminal to achieve positioning of the object to be oriented, which can obtain a more accurate positioning effect than relying only on the positioning of the camera.

The azimuth information of the object to be oriented may include position information and may also include direction information.

When the above orientation information is position information, the current coordinates of the camera and / or gyroscope of the mobile terminal are acquired, and the position of the object to be oriented is determined according to the current coordinates of the camera and / or gyroscope. In some embodiments, SLAM technology can be used to acquire image frames in real time, and in conjunction with data collected by the mobile terminal hardware sensor, such as a gyroscope, obtain the current coordinates of the camera and / or gyroscope of the mobile terminal through analysis and calculation to determine the Real-time location of the mobile terminal. The relative position of the mobile terminal and the to-be-oriented object is calculated according to the position of the virtual model that coincides with the image of the to-be-oriented object and the real-time position of the mobile terminal analyzed by the hardware sensor. According to the real-time position of the mobile terminal and the relative position of the mobile terminal and the object to be oriented, the real-time position of the object to be oriented can be obtained, that is, the position of the object to be oriented is determined.

When the above azimuth information is directional information, the central axis information of the virtual model that coincides with the object to be oriented is obtained, and the angle of the object to be oriented with respect to the electronic device for directional broadcast is obtained according to the central axis information, and this angle is used as the direction. Specifically, the current coordinates of the camera and / or the gyroscope of the mobile terminal are obtained. This step is the same as the foregoing embodiment, and details are not described herein again. In some embodiments, the detection data of the image frame and the hardware sensor of the mobile terminal can be obtained in real time by SLAM technology, and the center axis coordinates of the virtual model that coincides with the object to be oriented can be obtained. The angle of the mobile terminal before moving. This angle is the direction of the object to be oriented. Since the acquired image of the virtual model coincides with the object to be oriented, the center axis of the two is the same, and the acquired axis coordinate of the virtual model is also equivalent to the axis of the object to be oriented. By calculating the angle value of the center axis coordinate of the object to be oriented with respect to the mobile terminal before moving, the direction of the object to be oriented relative to the mobile terminal can be determined. In the case where the location of the mobile terminal is the same as the location of the electronic device performing the directional broadcast, that is, the direction of sound emission can be determined by the direction of the object to be oriented relative to the mobile terminal.

In step S102, an audio signal is loaded into a high-frequency signal to obtain a modulated signal. In some embodiments, a high frequency signal refers to a signal greater than 20 kHz. Because high-frequency signals with a frequency greater than 20KHz have better directivity during transmission, the higher the frequency, the better the directivity. Therefore, in some embodiments, the frequency of the above-mentioned high-frequency signal is greater than or equal to 20KHz. In some embodiments The high-frequency signal selected can be an ultrasonic signal.

The specific implementation of loading the audio signal into the high-frequency signal is to use a multiplier to modulate the audio signal onto the high-frequency signal.

In step S103, the modulation signal is broadcast to the object to be oriented.

Because the high-frequency signal has the characteristic of directional propagation, modulating the audio signal into the high-frequency signal for transmission achieves directional transmission in the air, and finally realizes self-demodulation in the air, so that the human ear can hear the restored audio signal. It solves the problem in the related art that targeted speech transmission cannot be performed according to the location of the user.

In some embodiments, a low-frequency voice signal sent from a home appliance can be modulated into a high-frequency signal for transmission and transmission. Because the high-frequency signal has the characteristic of directional propagation, the audio signal is modulated into the high-frequency signal for transmission in the air. The directional transmission prevents the audio signals from household appliances from bringing noise to others and improves the user experience.

As shown in FIG. 2, the above-mentioned home appliance is taken as an air conditioner as an example for detailed description.

In step S201, the user may select a voice broadcast mode as a directional broadcast through a mobile phone application APP, or may set a speaker direct broadcast mode by sending a voice instruction to the air conditioner. If the user selects the directed broadcast mode, step S202 is performed; if the user does not select the directed broadcast mode, step S204 is performed.

In step S202, the position of the camera image of the mobile phone is calculated in real time by AR augmented reality technology, a virtual mark is added to the mobile phone screen to locate the air-conditioning position, the image frame and mobile phone hardware sensor data are obtained in real time by SLAM technology, the real-time position of the mobile phone is analyzed and calculated, and the mobile phone is calculated The relative angle with the air conditioner, the acquisition angle is automatically transmitted to the air conditioner, and it is set to the directional propagation angle of the speaker, so as to realize the directional broadcast using the position of the mobile phone as the position of the object to be oriented. In some embodiments, the directional propagation angle may also be manually entered through a mobile phone APP, sent to the air conditioner, and the directional propagation angle of the speaker may be set.

In step 203, the directional speaker sends out an ultrasonic wave, and the voice emitted by the air conditioner is carried on the ultrasonic wave. The directivity of the ultrasonic wave is used to propagate the voice broadcast to the set angle area. While reducing interference with others and improving the privacy of playback, it also reduces the restrictions on the user's listening position and improves the user-friendliness of directional playback.

In step 204, the directional speaker does not transmit ultrasonic waves.

In this embodiment, a directional broadcast device is also provided. The device is used to implement the foregoing embodiments and preferred implementation manners, and the descriptions will not be repeated. As used below, the term "module" may implement a combination of software and / or hardware for a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware is also possible and conceived.

FIG. 3 is a structural block diagram of a directional broadcast device according to an embodiment of the present disclosure. As shown in FIG. 3, the obtaining module 31 can obtain the orientation information of an object to be oriented; the modulation module 32 can load an audio signal into a high-frequency signal to obtain modulation. Signal; the broadcast module 33 can broadcast the modulated signal to the object to be directed.

Such a directional broadcast device utilizes the characteristics of directional propagation of high-frequency signals to modulate audio signals into high-frequency signals to achieve directional playback of audio moving with the user's position, while reducing interference to others and improving the privacy of playback. , Also reduces the restrictions on the user's listening position, and improves the user-friendliness of directional playback.

In some embodiments, the acquisition module includes an establishment unit, a mobile unit, and an acquisition unit. The establishing unit can establish a virtual model of the object to be oriented in the direction of the camera of the mobile terminal; the mobile unit can cause the virtual model to move with the movement of the camera; the acquiring unit can coincide with the image of the object to be oriented captured by the camera in the virtual model , The orientation of the object to be oriented is obtained.

In some embodiments, the orientation of the object to be oriented may include the position of the object to be oriented, and the acquisition module can obtain the current coordinates of the camera and / or the gyroscope of the mobile terminal, and determine the to be oriented according to the current coordinates of the camera and / or the gyroscope Location.

In some embodiments, the orientation of the object to be oriented may include the direction of the object to be oriented, then the acquisition module can obtain the central axis information of the virtual model that coincides with the object to be oriented, and obtain the to-be-oriented object relative to the orientation broadcast according to the center axis information The angle of the electronic device is used as the direction of the object to be oriented.

In some embodiments, the high-frequency signal may be an ultrasonic signal, thereby further ensuring the directivity of the sound wave and improving the effect of directional transmission.

The directional broadcast device in this embodiment is presented in the form of a functional unit. The unit here refers to an ASIC circuit, a processor and a memory that execute one or more software or fixed programs, and / or other devices that can provide the above functions. .

Further functional descriptions of the foregoing modules are the same as the corresponding embodiments described above, and are not described herein again.

As shown in FIG. 4, the home appliance may include: at least one processor 401, for example, a CPU (Central Processing Unit), at least one communication interface 403, a memory 404, and at least one communication bus 402. The communication bus 402 is used to implement connection and communication between these components. The communication interface 403 may include a display screen and a keyboard. The optional communication interface 403 may also include a standard wired interface and a wireless interface. The memory 404 may be a high-speed RAM memory (Random Access Memory), or a non-volatile memory (non-volatile memory), such as at least one disk memory. The memory 404 may optionally be at least one storage device located far from the foregoing processor 401. The processor 401 may be combined with the device described in FIG. 3, and the application program is stored in the memory 404, and the processor 401 calls the program code stored in the memory 404 for executing the directed broadcast method in any of the foregoing embodiments.

The communication bus 402 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, or the like. The communication bus 402 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only a thick line is used in FIG. 4, but it does not mean that there is only one bus or one type of bus.

The memory 404 may include volatile memory (English: volatile memory), such as random access memory (English: random-access memory, abbreviation: RAM); the memory may also include non-volatile memory (English: non-volatile memory) For example, flash memory (English: flash memory), hard disk (English: hard disk drive (abbreviation: HDD)) or solid state hard disk (English: solid-state drive (abbreviation: SSD)); the memory 404 may also include the above types of memory. combination.

The processor 401 may be a central processing unit (English: central processing unit, abbreviation: CPU), a network processor (English: network processor, abbreviation: NP), or a combination of CPU and NP.

The processor 401 may further include a hardware chip. The above hardware chip may be an application-specific integrated circuit (English: Application-specific integrated circuit (abbreviation: ASIC)), a programmable logic device (English: programmable logic device (abbreviation: PLD)), or a combination thereof. The PLD may be a complex programmable logic device (English: complex programmable device, abbreviation: CPLD), a field programmable logic gate array (English: field-programmable gate array, abbreviation: FPGA), general array logic (English: generic array) logic, abbreviation: GAL) or any combination thereof.

In some embodiments, the memory 404 is also used to store program instructions. The processor 401 may call program instructions to implement the directed broadcast method as shown in the embodiments of FIGS. 1 and 2 of the present application.

An embodiment of the present disclosure also provides a non-transitory computer storage medium. The computer storage medium stores computer-executable instructions, and the computer-executable instructions can execute the directed broadcast method in any of the foregoing method embodiments. Among them, the storage medium may be a magnetic disk, a compact disc, a read-only memory (ROM), a random access memory (RAM), a flash memory (Flash), and a hard disk (Hard disk drive). , Abbreviation: HDD) or Solid-State Drive (SSD), etc .; the storage medium may also include a combination of the above types of memory.

In summary, the directional speaker proposed in the present disclosure can be used in air conditioners to realize the directional broadcast of smart air-conditioning voice, and provide two types of broadcast modes, directional and broadcast, to meet the different needs of users in different scenarios, and to enable users to use Certain privacy requirements during air-conditioning voice broadcasting have realized the permission control of the air-conditioning voice broadcasting function, that is, controlling which user has the right to hear the broadcasting, and also controlling the scope of the voice broadcasting to reduce noise interference to the surrounding environment.

Although the embodiments of the present disclosure have been described with reference to the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present disclosure. Such modifications and variations all fall within the scope of the appended claims. Within the limits.

Claims

A directed broadcast method includes:

Obtain the orientation information of the object to be oriented;

Load the audio signal into the high-frequency signal to obtain a modulated signal;

Broadcasting the modulated signal to the object to be oriented.
The directional broadcast method according to claim 1, wherein obtaining the orientation information of the object to be directed comprises:

Establishing a virtual model of the object to be oriented in a direction of the camera of the mobile terminal;

Causing the virtual model to move with the movement of the camera;

When the virtual model coincides with an image of the object to be oriented captured by the camera, an orientation of the object to be oriented is obtained.
The directional broadcast method according to claim 2, wherein the obtaining the orientation of the object to be directed comprises:

When the virtual model coincides with an image of the object to be oriented captured by the camera, obtaining a relative position of the object to be oriented and the mobile terminal;

Determine the orientation of the object to be oriented according to the real-time position of the mobile terminal and the relative position of the object to be oriented and the mobile terminal.
The directional broadcast method according to claim 1, wherein the orientation of the object to be oriented includes the position of the object to be oriented, and obtaining the position of the object to be oriented includes:

Obtaining the current coordinates of the camera and / or gyroscope of the mobile terminal;

The position of the object to be oriented is determined according to the current coordinates of the camera and / or the gyroscope.
The method according to claim 4, wherein the determining the position of the object to be oriented according to the current coordinates of the camera and / or the gyroscope comprises:

When the mobile terminal is located at the position of the object to be oriented, the current coordinates of the camera and / or the gyroscope are the position of the object to be oriented; or,

When the mobile terminal is not located at the position of the object to be oriented, the SLAM is constructed based on the instant positioning and the map, and the current coordinates of the camera and / or the gyroscope determine the position of the object to be oriented.
The directional broadcast method according to claim 2, wherein the orientation of the object to be oriented includes the direction of the object to be oriented, and obtaining the direction of the object to be oriented includes:

Acquiring central axis information of the virtual model that coincides with the object to be oriented;

An angle of the object to be oriented relative to the electronic device performing directional broadcast is obtained according to the central axis information, and the angle is used as a direction of the object to be oriented.
The method according to claim 1, wherein the orientation of the object to be oriented includes the direction of the object to be oriented, and obtaining the direction of the object to be oriented includes:

Obtaining the angle of the mobile terminal with respect to the electronic device for directional broadcast through a mobile terminal located at the position of the object to be oriented;

Sending the angle to the electronic device for directional broadcast, and the angle is used as the direction of the object to be oriented.
The directional broadcast method according to any one of claims 1 to 7, wherein the high-frequency signal is an ultrasonic signal.
A directional broadcast device includes:

An acquisition module configured to acquire azimuth information of an object to be oriented;

A modulation module configured to load an audio signal into a high-frequency signal to obtain a modulated signal;

A broadcast module configured to broadcast the modulated signal to the object to be directed.
The directional broadcast device according to claim 9, wherein the acquisition module comprises:

A establishing unit configured to establish a virtual model of the object to be oriented in a direction to which a camera of the mobile terminal is directed;

A moving unit configured to cause the virtual model to move as the camera moves;

The obtaining unit is configured to obtain the orientation of the object to be oriented when the virtual model and the image of the object to be oriented are captured by the camera.
The directional broadcast device according to claim 10, wherein the obtaining unit is configured to:

When the virtual model coincides with an image of the object to be oriented captured by the camera, obtaining a relative position of the object to be oriented and the mobile terminal;

Determine the orientation of the object to be oriented according to the real-time position of the mobile terminal and the relative position of the object to be oriented and the mobile terminal.
The directional broadcast device according to claim 9, wherein the orientation of the object to be oriented includes the position of the object to be oriented;

The acquisition module is further configured:

Acquiring current coordinates of a camera and / or a gyroscope of the mobile terminal;

The position of the object to be oriented is determined according to the current coordinates of the camera and / or the gyroscope.
The directional broadcast device according to claim 12, wherein the determining the position of the object to be oriented according to the current coordinates of the camera and / or the gyroscope comprises:

When the mobile terminal is located at the position of the object to be oriented, the current coordinates of the camera and / or the gyroscope are the position of the object to be oriented; or,

When the mobile terminal is not located at the position of the object to be oriented, the SLAM is constructed based on the instant positioning and the map, and the current coordinates of the camera and / or the gyroscope determine the position of the object to be oriented.
The directional broadcast device according to claim 10, wherein the orientation of the object to be oriented includes the direction of the object to be oriented;

The acquisition module is further configured:

Acquiring central axis information of the virtual model that coincides with the object to be oriented;

An angle of the object to be oriented relative to the electronic device performing directional broadcast is obtained according to the central axis information, and the angle is used as a direction of the object to be oriented.
The directional broadcast device according to claim 9, wherein the orientation of the object to be oriented includes the direction of the object to be oriented, and obtaining the direction of the object to be oriented includes:

Obtaining the angle of the mobile terminal with respect to the electronic device for directional broadcast through a mobile terminal located at the position of the object to be oriented;

Sending the angle to the electronic device for directional broadcast, and the angle is used as the direction of the object to be oriented.
The directional broadcast device according to any one of claims 9 to 15, wherein the high-frequency signal is an ultrasonic signal.
A home appliance includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the one processor, and the instructions are executed by the at least one processor A processor executes, so that the at least one processor executes the directed broadcast method according to any one of claims 1-8.
A computer-readable storage medium having computer instructions stored thereon, characterized in that when the instructions are executed by a processor, the directed broadcast method according to any one of claims 1-8 is implemented.