CN111182279A - Projection display method based on position detection and sound box - Google Patents

Abstract

The embodiment of the invention relates to the technical field of sound boxes, and discloses a projection display method based on position detection and a sound box, wherein the method comprises the following steps: when the loudspeaker box display screen is in a bright screen state, detecting whether a projection instruction is received; when a projection instruction is received, detecting a target projection position through a shooting device of a sound box; acquiring display content of a sound box display screen, and synchronously projecting the display content to a target projection position; a degree of agreeing with wisdom life theory is promoted to the intelligence projection that is used for realizing the audio amplifier, improves the intellectuality of audio amplifier.

Description

Projection display method based on position detection and sound box

Technical Field

The invention relates to the technical field of sound boxes, in particular to a projection display method based on position detection and a sound box.

Background

The projecting apparatus of voiced sound box has been released on the market, is equivalent to intelligent audio amplifier, including the audio amplifier and with audio amplifier complex projecting apparatus. The projector can project on the surface of any flat object, and the matched loudspeaker box can play related music, conversation voice and the like. Wherein, the projection position is generally selected by the user, and the user places the projecting apparatus again and places the best place position that can project to the projection position, needs the manual adjustment projecting apparatus position of user in order to obtain the projection position in reality, and is intelligent lack, mismatch the theory of wisdom life under the present society.

Disclosure of Invention

The embodiment of the invention discloses a projection display method based on position detection and a sound box, which are used for realizing intelligent projection of the sound box, improving the intellectualization of the sound box and improving the conformity with the intelligent life concept.

The first aspect of the embodiments of the present invention discloses a projection display method based on position detection, which may include:

when the loudspeaker box display screen is in a bright screen state, detecting whether a projection instruction is received;

when the projection instruction is received, detecting a target projection position through a shooting device of the sound box;

and acquiring the display content of the loudspeaker box display screen, and synchronously projecting the display content to the target projection position.

As an optional implementation manner, in the first aspect of the embodiment of the present invention, when the projection instruction is received, detecting a target projection position by a shooting device of the sound box includes:

when the projection instruction is received, carrying out scene detection through a shooting device of the sound box to obtain a target scene, wherein the target scene comprises a specific scene or a non-specific scene;

and determining the target projection position in a preset acquisition mode corresponding to the target scene.

As an optional implementation manner, in the first aspect of the embodiment of the present invention, the determining the target projection position in a preset acquisition manner corresponding to the target scene includes:

when the target scene is a non-specific scene, detecting the position of a user and a plane faced by the user through the shooting device;

acquiring the horizontal distance between the head of the user and the plane;

and determining a first projection position from the plane by taking the horizontal distance as a basis, and taking the first projection position as the target projection position, wherein the first projection position at least comprises a projection area and a plurality of projection boundary coordinates.

As an optional implementation manner, in the first aspect of the embodiment of the present invention, the determining a target projection position in a preset acquisition manner corresponding to the target scene includes:

and when the target scene is the specific scene, detecting a target projection position reserved in the space where the sound box is located through the shooting device.

As an optional implementation manner, in the first aspect of the embodiment of the present invention, before the obtaining the display content of the sound box display screen and synchronously projecting the display content to the target projection position, the method further includes:

detecting the brightness value of the environment where the sound box is located;

detecting a current time when the brightness value is greater than a brightness threshold;

if the current time is indicated to be in the daytime, detecting whether curtains of windows around the sound box are in an open state through the shooting device; when the curtain is in an opening state, playing preset first scene linkage music for triggering the curtain to be closed, so that an actuator for controlling the curtain closes the curtain when the first scene linkage music is detected;

and if the current time indication is at night, playing preset second scene linkage music for triggering and closing the wall lamp of the environment where the sound box is located, so that an actuator for controlling the wall lamp adjusts the brightness of the wall lamp or closes the wall lamp when detecting the second scene linkage music.

A second aspect of the embodiments of the present invention discloses a sound box, which may include:

the instruction detection unit is used for detecting whether a projection instruction is received or not when the loudspeaker box display screen is in a bright screen state;

the position detection unit is used for detecting the projection position of a target through the shooting device of the sound box when the instruction detection unit receives the projection instruction;

and the projection unit is used for acquiring the display content of the loudspeaker box display screen and synchronously projecting the display content to the target projection position.

As an optional implementation manner, in a second aspect of the embodiment of the present invention, the position detection unit includes:

the scene detection subunit is configured to, when the instruction detection unit receives the projection instruction, perform scene detection by using a shooting device of the sound box to obtain a target scene, where the target scene includes a specific scene or a non-specific scene;

and the position determining subunit is configured to determine the target projection position in a preset acquisition manner corresponding to the target scene.

As an optional implementation manner, in the second aspect of the embodiment of the present invention, the position determining subunit includes:

the first determining module is used for detecting the position of a user and a plane faced by the user through the shooting device when the target scene is a non-specific scene; and acquiring the horizontal distance between the head of the user and the plane; and determining a first projection position from the plane by taking the horizontal distance as a basis, wherein the first projection position is taken as the target projection position, and the first projection position at least comprises a projection area and a plurality of projection boundary coordinates.

As an optional implementation manner, in the second aspect of the embodiment of the present invention, the position determining subunit includes:

and the second determining module is used for detecting a target projection position reserved in the space where the sound box is located through the shooting device when the target scene is the specific scene.

As an optional implementation manner, in the second aspect of the embodiment of the present invention, the sound box further includes:

the brightness detection unit is used for acquiring the display content of the sound box display screen by the projection unit and detecting the brightness value of the environment where the sound box is located before the display content is synchronously projected to the target projection position;

the time detection unit is used for detecting the current time when the brightness detection unit detects that the brightness value is greater than the brightness threshold value;

the curtain control unit is used for detecting whether the curtain of the window around the sound box is in an open state or not through the shooting device if the current time indication detected by the time detection unit is daytime; when the curtain is in an opening state, playing preset first scene linkage music for triggering the curtain to be closed, so that an actuator for controlling the curtain closes the curtain when the first scene linkage music is detected;

and the lamp control unit is used for playing preset second scene linkage music for triggering and closing the wall lamp in the environment where the sound box is located if the time detection unit detects that the current time indication is at night, so that an actuator for controlling the wall lamp detects that the brightness of the wall lamp is adjusted or the wall lamp is closed during the second scene linkage music.

A third aspect of the embodiments of the present invention discloses a sound box, which may include:

a memory storing executable program code;

a processor coupled with the memory;

the processor calls the executable program code stored in the memory to execute the projection display method based on the position detection disclosed by the first aspect of the embodiment of the invention.

A fourth aspect of the embodiments of the present invention discloses a computer-readable storage medium storing a computer program, where the computer program enables a computer to execute the projection display method based on position detection disclosed in the first aspect of the embodiments of the present invention.

A fifth aspect of embodiments of the present invention discloses a computer program product, which, when run on a computer, causes the computer to perform some or all of the steps of any one of the methods of the first aspect.

A sixth aspect of the present embodiment discloses an application publishing platform, where the application publishing platform is configured to publish a computer program product, where the computer program product is configured to, when running on a computer, cause the computer to perform part or all of the steps of any one of the methods in the first aspect.

Compared with the prior art, the embodiment of the invention has the following beneficial effects:

in the embodiment of the invention, when the loudspeaker box display screen is in a bright screen state, whether the projection instruction is received or not is detected, when the projection instruction is received, the projection position is detected through the shooting device of the loudspeaker box, and then the display content displayed on the loudspeaker box display screen is synchronously projected to the detected projection position.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a sound box disclosed in an embodiment of the present invention;

FIG. 2 is a schematic flowchart of a projection display method based on position detection according to an embodiment of the present invention;

FIG. 3 is a schematic flowchart of a projection display method based on position detection according to another embodiment of the disclosure;

FIG. 4 is a schematic flowchart of a projection display method based on position detection according to another embodiment of the disclosure;

fig. 5 is a schematic structural view of a sound box disclosed in another embodiment of the present invention;

fig. 6 is a schematic structural view of a sound box disclosed in another embodiment of the present invention;

fig. 7 is a schematic structural view of a sound box disclosed in another embodiment of the present invention;

fig. 8 is a schematic structural view of a sound box disclosed in another embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first", "second", "third", and the like in the description and the claims of the present invention are used for distinguishing different objects, and are not used for describing a specific order. The terms "comprises," "comprising," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The embodiment of the invention discloses a projection display method based on position detection, which is used for improving the intellectualization of a sound box and improving the conformity with the intelligent life concept. The embodiment of the invention also correspondingly discloses a sound box.

The embodiment of the invention discloses a sound box, which is integrally formed vertical equipment, can be small intelligent equipment with smaller volume placed on a desktop, and can also be vertical intelligent equipment placed on the ground, wherein the sound box comprises a main machine box body, and a display screen is arranged on the main machine box body. In an optional application scene, the audio amplifier still includes the camera, and display screen and camera can be dismantled and set up on the host computer box, and when using, install the position of reserving on the host computer box with display screen and/or camera, when not using, can pull down display screen and/or camera, are convenient for remove the audio amplifier, protect display screen and camera. In another optional application scenario, the sound box is not provided with a camera, but is provided with an additional camera, and when the sound box is used by a user, the camera can be installed on glasses worn by the user. Or, the audio amplifier still includes the camera, disposes extra camera simultaneously, and when the user used, can install the extra camera of configuration on the glasses that the user wore. In another optional application scenario, the sound box further includes a camera, the camera may be connected to the main box body through a pull rope, and the camera may be pulled out and fixed to any position on the main box body. In another optional application scenario, the sound box may adopt a dual-camera design, including a top camera and a bottom camera, where the top camera is rotatable and liftable for shooting a desktop, and the bottom camera is fixed in the host box and may be used for recognizing gestures. In another optional application scenario, the bottom of the main cabinet is further provided with wheels, so that the main cabinet can be pushed to move. Further optionally, a control circuit is further arranged inside the main case body, the control circuit is electrically connected with the wheels, the main case body provides a walking path, the sound box can be controlled to walk according to the walking path through the control circuit, and automatic movement of the sound box is achieved. In another optional application scenario, the display screen of the sound box may adopt a folding screen to solve the problem of switching between a horizontal screen and a vertical screen. In another optional application scenario, the sound box is further provided with a supplementary lighting source, which may include a bulb, a light strip, or a light strip + an external component (e.g., a shutter), and the like. As shown in fig. 1, only the main body case, the display screen, and the camera are shown in fig. 1, and other components are not shown in fig. 1. It can be understood that fig. 1 is only a sound box corresponding to some embodiments of the present invention, and other sound boxes that are optimized or modified based on the sound box of fig. 1 and can implement the technical solution of the present invention all belong to the protection scope of the technical solution of the present invention, and are not listed here.

The technical solution of the present invention will be described in detail by specific embodiments from the perspective of a sound box.

Example one

Referring to fig. 2, fig. 2 is a schematic flowchart illustrating a projection display method based on position detection according to an embodiment of the present invention; as shown in fig. 2, the projection display method based on position detection may include:

201. and when the display screen is in a bright screen state, the sound box detects whether a projection instruction is received. Wherein, when receiving the projection instruction, turning to step 202; when the projection instruction is not received, the flow is ended.

The sound box provided by the embodiment of the invention can provide various learning functions, play music and videos and the like, can realize projection, and projection contents can be synchronously displayed on a display screen or not. For example, the user can play music, video and the like by using the sound box, or realize learning functions such as dictation, reading in the learning process or online face-to-face class and the like, and display corresponding applications through the display screen.

As an alternative implementation, step 201 may include:

when the loudspeaker box display screen is in a bright screen state, detecting whether a projection gesture for indicating projection is received or not through a shooting device of the loudspeaker box; and when the projection gesture is received, determining that a projection instruction is received. Optionally, the projection gesture for indicating projection is shot in advance and stored in the sound box, and when the sound box display screen is in a bright screen state, whether the projection gesture is used for indicating projection is detected by the shooting device. In the embodiment, the user can control the sound box through gestures, so that the intellectualization of the sound box is improved, and more interaction between the user and the sound box is realized.

Further optionally, detecting, by the camera of the sound box, whether a projection gesture indicating projection is received may include: whether a gesture action is received or not is detected through a shooting device of the sound box, when the gesture action is received, whether the gesture action is matched with a pre-stored projection gesture or not is judged, and if the gesture action is matched with the pre-stored projection gesture, a projection instruction is determined to be received. The embodiment is a specific implementation of the above embodiment to improve the intellectualization of the sound box.

Further optionally, the shooting device is specifically a camera of the sound box, wherein, in combination with the sound box shown in fig. 1, the sound box may include at least a top camera and a bottom camera, and specifically, detecting whether a projection gesture for indicating projection is received by the shooting device of the sound box includes: whether a projection gesture for indicating projection is received or not is detected through a bottom camera of the sound box. In this optional mode, the sound box is provided with at least two cameras, wherein a bottom camera can be preferably used for detecting the projection gesture, and when the user is learning, a top camera can be used for shooting a desktop to detect the learning progress of the user.

Or, as another optional implementation, step 201 may include:

detecting whether projection voice for indicating projection is received or not through a sound box; and determining that the projection instruction is received when the projection voice is detected to be received. Alternatively, the projected voice is pre-recorded and saved in a sound box. In the embodiment, the user can control the sound box through voice, so that the operation process of the sound box is simplified, and the user experience is improved.

Further optionally, the pre-recording of the projected voice by the speaker may include: the audio amplifier passes through the microphone and picks up the projection pronunciation to the projection pronunciation that will pick up are preserved on the audio amplifier, through this embodiment, can record the projection pronunciation in advance, in order to realize the speech control of audio amplifier, improve the intellectuality of audio amplifier.

202. The sound box detects the projection position of the target through the shooting device.

203. The sound box acquires the display content of the display screen and synchronously projects the display content to a target projection position.

It can be understood that the display content of the display screen may be a learning interface of any learning application, or an audio/video playing interface, and the like, which is not limited in this embodiment of the present invention.

Implement above-mentioned embodiment, the audio amplifier can be under the trigger of projection instruction, through shooting the device detection ring border condition, intelligently for the user selects the projection position, need not user's manual removal audio amplifier and selects, realizes the synchronous projection of the demonstration content of audio amplifier display screen, improves the intellectuality of audio amplifier, promotes the degree of agreeing with the wisdom life theory.

Example two

Referring to fig. 3, fig. 3 is a schematic flowchart illustrating a projection display method based on position detection according to another embodiment of the present invention; as shown in fig. 3, the projection display method based on position detection may include:

301. when the display screen is in a bright screen state, the sound box detects whether a projection instruction is received; when the projection command is received, the process goes to step 302, and when the projection command is not received, the process is ended.

302. The sound box carries out scene detection through the shooting device to obtain a target scene, wherein the target scene comprises a specific scene or a non-specific scene.

The specific scene may include a classroom, a training room, a conference room, etc., and the non-specific scene refers to a scene excluding the specific scene.

As an optional implementation manner, the sound box performs scene detection through the shooting device to obtain a target scene, and may include: the sound box controls the top camera to rotate so as to shoot the panoramic image, and scene analysis is carried out according to the panoramic image so as to obtain a target scene. In this embodiment, the top camera of audio amplifier can rotate to realize 360 degrees panorama shooting, through this embodiment, can be through 360 degrees panorama shooting, accurately discern the scene that the audio amplifier was located.

Further, images of various scenes may be collected in advance in the loudspeaker box, and then scene analysis is performed according to the panoramic image, and obtaining the target scene may include: the sound box compares the panoramic image with a prestored scene image, and if the matching degree of the panoramic image and a certain scene image is higher than a threshold value, a scene corresponding to the certain scene image is obtained as a target scene; or the sound box analyzes the scene characteristics in the panoramic image, and if the ratio of the scene characteristics of the panoramic image to the scene characteristics of a certain scene image is greater than a preset value, a scene corresponding to the certain scene image is acquired as a target scene. In this embodiment, by collecting various scene images, in the actual detection process, the captured images are compared with the scene images, so that the scene can be accurately identified.

Further optionally, the main cabinet body of the loudspeaker box comprises a processor and is further provided with a control part, a camera base is rotatably connected to the top of the main cabinet body, a top camera is arranged on the camera base, the control part is electrically connected with the processor and the camera base, and the processor triggers the control part to control the camera base to rotate 360 degrees after receiving the projection instruction so as to shoot the panoramic image. In order to improve the shooting accuracy, a plurality of panoramic images can be shot continuously, so that several relatively close panoramic images can be found out through the comparative analysis of the panoramic images, and a panoramic image with higher definition can be obtained from the found panoramic images, so as to improve the determination accuracy of the projection position.

303. And the sound box determines the target projection position in a preset acquisition mode corresponding to the target scene.

As an alternative implementation, step 303 may include:

when the target scene is a non-specific scene, detecting the position of a user and a plane faced by the user through a shooting device;

acquiring the horizontal distance between the head of a user and a plane;

and determining a first projection position from the plane by taking the horizontal distance as a basis, wherein the first projection position is taken as a target projection position, and the first projection position at least comprises a projection area and a plurality of projection boundary coordinates.

In the above embodiment, the sound box detects the position of the user through the shooting device, determines the plane faced by the user, and further determines the projection position by taking the horizontal distance between the head and the plane as the sound box, so as to realize intelligent projection of the sound box.

The plane can be any flat plane, such as a wall surface, a display screen, a desktop and the like.

Further optionally, the sound box detecting the location of the user through the shooting device may include: the sound box shoots images through the shooting device, and the position of a user is analyzed according to the shot images. Further, the sound box may analyze the location of the user according to the captured image, including: the sound box determines at least three objects from the space where the sound box is located according to the shot image, the determined at least three objects are used as reference objects to obtain a space coordinate system of the space where the sound box is located, the at least three objects are relatively fixed objects (such as a desk, a wall lamp and the like) in the space where the sound box is located, and the position where the user is located is further determined based on the determined space coordinate system and the sound box. In the embodiment, the position of the user can be determined in a space positioning mode, and the user can be accurately positioned.

Further, the sound box further determines the position of the user based on the determined spatial coordinate system and the sound box, and specifically includes: the sound box transmits a detection signal to the head of a user and records the transmitting time of the transmitted detection signal, receives a reflection signal of the head of the user and records the receiving time of the received transmission signal, obtains the spatial distance between a sound effect and the head of the user according to the receiving time, the transmitting time and the known signal transmission speed, and then determines the position of the user in a spatial coordinate system based on the position of the sound box in the spatial coordinate system, so that the position of the user can be determined. The implementation mode is simple and convenient to implement, and the position of the user can be accurately positioned.

Further optionally, the sound box detecting a plane faced by a user includes: after the position of the user is determined, the sound box further analyzes the shot image to determine the direction faced by the user, then analyzes and obtains a plane in the direction faced by the user based on the determined space coordinate system, then selects a plane suitable for projection, and further determines a projection area and a plurality of projection boundary coordinates in the shot image based on the shot image.

As an alternative embodiment, when the sound box fails to detect the plane faced by the user, the sound box detects a plane in other direction from the space where the sound box is located, the other direction is the direction faced by the user, and if the plane in other direction is detected, the projection position is determined from the plane. In this embodiment, if the loudspeaker cannot find a plane that can be used for projection in the aspect that the user is facing, the other directions are detected and an appropriate plane is selected from the other directions for projection.

Further, after the speaker selects a plane from other aspects, the speaker may play a voice or the display screen outputs a query message for asking the user whether the user agrees to project in the plane. And when the sound box receives the consent message fed back by the user, the sound box goes to execute step 304. In this embodiment, the sound box preferably projects the user in the direction in which the user faces to adapt the visual orientation of the user in front of the user, and when the user cannot determine the projection position for the user in the direction in which the user faces, the user can select the projection position from other directions.

For example, when a user uses a sound box to listen, write and report, the sound box is placed on a desktop, a listening and writing application program is opened at the front end of a display screen, and if a projection instruction is received, the position of the user and a plane facing the user can be detected, and then the projection position can be intelligently selected for the user according to the horizontal distance between the plane and the head of the listening and writing user.

As an optional implementation manner, in order to create a smart life, the sound box and other smart electronic devices in the home are connected to the smart life home control center, so as to connect all the smart electronic devices in the home, and set various working modes, such as a home mode, a learning mode, a rest mode, a leisure mode, and the like, and set a working smart electronic device and a non-working smart electronic device for different working modes, for example, after a user starts the home mode, if the user needs to turn on a lamp, an air conditioner, a television, and the like at night, after the smart life home control center starts the home mode, the smart life home control center sends a turn-on instruction to the lamp controller, the air conditioner controller, the television controller, and the like, so that the corresponding controller turns on the corresponding smart electronic device after receiving the turn-on instruction. Based on this, before executing step 301, the smart life home control center sends a start prompt to the sound box according to a selection operation of the user on a target working mode (the target working mode is any one of the home mode, the learning mode, the rest mode, or the leisure mode), where the start prompt is used to remind the sound box that the target working mode is started, and when receiving the start prompt, the sound box automatically starts and opens the display screen, enters a state of further detecting a user instruction, and executes step 301. In this embodiment, can couple together the audio amplifier through wisdom life house control center, utilize the audio amplifier further to perfect wisdom life, improve quality of life.

As another alternative, step 303 may include: when the target scene is a specific scene, the reserved target projection position in the space where the sound box is located is detected through the shooting device. In this embodiment, a specific scene is generally provided with a corresponding projection position, and if the target scene is the specific scene, the reserved projection position in the space where the sound box is located is detected by the shooting device, for example, a multimedia classroom is generally provided with projection cloth or a reserved blank wall, so that when projection is performed, only the projection cloth or the blank wall needs to be detected and then projected to the projection cloth or the blank wall.

Further alternatively, the school may be equipped with a speaker for each classroom, connect the speakers for each teaching in the school teaching management center, and set the triggering condition for the speaker to turn on in each classroom according to the class schedule of each class and class, the classroom teaching schedule, or the supervision of the school teaching management center staff, for example, the classroom 101 is needed for the third class on monday (10: 20 early-11: 00 early), so the triggering condition for the speaker to turn on in the classroom 101 may be set in the school teaching management center.

Therefore, before step 301 is executed, the sound box may check whether the preset trigger condition is met, and if the preset trigger condition is met, the sound box automatically starts and turns on the display screen, enters a state of further detecting the user instruction, and executes step 301. Wherein, the trigger condition can be a lesson ring or a lesson time.

Or, before executing step 301, the sound box detects whether an open instruction sent by the school teaching management center is received, and if the open instruction is received, the sound box automatically starts and opens the display screen, and enters a state of further detecting a user instruction, and step 301 is executed.

304. The sound box acquires the display content of the display screen and synchronously projects the display content to the projection position.

In above-mentioned embodiment, the audio amplifier can select the projection position according to the scene through the analysis place scene after receiving the projection instruction to with the synchronous projection of the demonstration content of display screen to target projection position, need not the manual removal audio amplifier of user and select, realize the synchronous projection of the demonstration content of audio amplifier display screen, improve the intellectuality of audio amplifier, promote the degree of agreeing with wisdom life theory.

EXAMPLE III

Referring to fig. 4, fig. 4 is a schematic flowchart illustrating a projection display method based on position detection according to another embodiment of the present invention; in the projection display method based on position detection shown in fig. 4, the method may include:

401. and when the display screen is in a bright screen state, the sound box detects whether a projection instruction is received. Wherein, when receiving a projection instruction, turning to step 402; when the projection instruction is not received, the flow is ended.

402. The sound box detects the brightness value of the environment.

It can be understood that, during projection, the brightness directly affects the projection effect, and especially when a student learns, the brightness directly affects the projection effect and the reflected light may hurt the eyes of the student, whereas if the brightness is too dark, the eyes of the student may also be damaged, and therefore, in the embodiment of the present invention, after receiving the projection instruction, the brightness value of the environment where the sound box is located is further determined.

403. And when the detected light brightness value is larger than the brightness threshold value, the sound box detects the current time.

In the embodiment of the invention, effective brightness adjustment is further carried out in combination with time.

404. If the current time is indicated to be daytime, the sound box detects whether the curtains of the surrounding windows are in an open state through the shooting device; wherein, when the window curtain is in the open state, turning to step 405; when the curtain is in the closed state, the process is ended.

It will be appreciated that if the light is sufficiently high during the day, it may cause the light intensity value to be greater than the intensity threshold, and therefore, in embodiments of the present invention, it may be detected whether the blinds are closed, and if not, the blinds may be selected to be closed first.

405. The sound box plays preset first scene linkage music for triggering the curtain to be closed, so that the actuator for controlling the curtain closes the curtain when the first scene linkage music is detected.

After step 405 is completed, the process goes to step 407.

It can be understood that, in the embodiment of the present invention, based on the concept of smart life, the first scenario linked music for triggering the curtain to close may be set, so as to implement the triggering and closing of the curtain, further improve the intelligence of the sound box, and improve the user experience.

Optionally, the first scenario linkage music for triggering the curtain to close may be set in the smart home control center in a correlated manner, and at the same time, the speaker and the actuator may also need to be set.

406. If the current time indication is at night, the loudspeaker box plays preset second scene linkage music for triggering to close the wall lamp in the environment, so that the actuator for controlling the wall lamp adjusts the brightness of the wall lamp or closes the wall lamp when detecting the second scene linkage music.

After step 406 is executed, the process goes to step 407.

At night, whether the projection is affected by the light is detected, and if so, the brightness of the light is further adjusted or the wall lamp is directly turned off. It will be appreciated that if the environment is too dark, the eyes may be harmed, and therefore the brightness or color of the light, etc. of the wall lamp may be adjusted.

As an optional implementation manner, when the display screen of the sound box displays a learning application (that is, when the user learns by using the sound box) and the current time is indicated as night, the third scene linkage music is played, so that the desk lamp in the environment where the sound box is located turns on the camera, turns on the desk lamp when the user is detected to be in learning, and controls the desk lamp to project light onto a horizontal plane in front of the user within a preset range.

407. The sound box acquires the display content of the display screen and synchronously projects the display content to the projection position.

By implementing the embodiment, the sound box can further detect the brightness of the environment after receiving the projection instruction, if the brightness exceeds the brightness threshold, the reason that the brightness exceeds the brightness threshold is detected in a targeted manner according to the current time, and then targeted adjustment is performed, so that the projection effect is improved, and a better use feeling is provided for a user.

Example four

Referring to fig. 5, fig. 5 is a schematic structural diagram of a sound box according to another embodiment of the present invention; as shown in fig. 5, the sound box may include:

the instruction detection unit 510 is configured to detect whether a projection instruction is received when the speaker display screen is in a bright screen state;

a position detection unit 520, configured to detect a target projection position through a camera of the speaker when the instruction detection unit 510 receives the projection instruction;

and the projection unit 530 is configured to acquire display content of the sound box display screen and project the display content to a target projection position synchronously.

Implement above-mentioned audio amplifier, the audio amplifier can be under the trigger of projection instruction, through shooting the device detection ring border condition, intelligently for user's selection projection position, need not user's manual removal audio amplifier and select, realizes the synchronous projection of the demonstration content of audio amplifier display screen, improves the intellectuality of audio amplifier, promotes the degree of agreeing with the wisdom life theory.

As an optional implementation manner, the instruction detecting unit 510 is configured to, when the sound box display screen is in a bright screen state, detect whether the projection instruction is received specifically includes: when the speaker display screen is in a bright screen state, the instruction detection unit 510 detects whether a projection gesture for indicating projection is received through a shooting device of the speaker; and when the projection gesture is received, determining that a projection instruction is received. Optionally, the projection gesture for indicating projection is shot in advance and stored in the sound box, and when the sound box display screen is in a bright screen state, whether the projection gesture is used for indicating projection is detected by the shooting device. In the embodiment, the user can control the sound box through gestures, so that the intellectualization of the sound box is improved, and more interaction between the user and the sound box is realized.

Further optionally, the instruction detecting unit 510 for detecting whether a projection gesture for indicating projection is received through a camera of the sound box may include: the instruction detecting unit 510 is configured to detect whether a gesture motion is received through a shooting device of the sound box, determine whether the gesture motion matches a pre-stored projection gesture when the gesture motion is received, and determine that a projection instruction is received if the gesture motion matches the pre-stored projection gesture. The embodiment is a specific implementation of the above embodiment to improve the intellectualization of the sound box.

Further optionally, the shooting device is specifically a camera of the sound box, wherein, in combination with the sound box shown in fig. 1, the sound box may include at least a top camera and a bottom camera, and specifically, the instruction detecting unit 510 is configured to detect whether a projection gesture for indicating projection is received through the shooting device of the sound box includes: the instruction detection unit 510 is configured to detect whether a projection gesture for indicating projection is received through a bottom camera of the sound box. In this optional mode, the sound box is provided with at least two cameras, wherein a bottom camera can be preferably used for detecting the projection gesture, and when the user is learning, a top camera can be used for shooting a desktop to detect the learning progress of the user.

As another optional implementation manner, the instruction detecting unit 510 is configured to, when the sound box display screen is in a bright screen state, detect whether the projection instruction is received specifically includes: the instruction detecting unit 510 is configured to detect, by the speaker, whether a projection voice for indicating projection is received; and determining that the projection instruction is received when the projection voice is detected to be received. Alternatively, the projected voice is pre-recorded and saved in a sound box. In the embodiment, the user can control the sound box through voice, so that the operation process of the sound box is simplified, and the user experience is improved.

Further optionally, the pre-recording of the projected voice by the speaker may include: the audio amplifier passes through the microphone and picks up the projection pronunciation to the projection pronunciation that will pick up are preserved on the audio amplifier, through this embodiment, can record the projection pronunciation in advance, in order to realize the speech control of audio amplifier, improve the intellectuality of audio amplifier.

EXAMPLE five

Referring to fig. 6, fig. 6 is a schematic structural diagram of a sound box according to another embodiment of the present invention; the sound box shown in fig. 6 is optimized based on the sound box shown in fig. 5, and in the sound box shown in fig. 6, the position detecting unit 520 may include:

a scene detection subunit 5210, configured to perform scene detection through a shooting device of the loudspeaker box when the instruction detecting unit 510 receives the projection instruction, so as to obtain a target scene, where the target scene includes a specific scene or a non-specific scene;

the position determining subunit 5220 is configured to determine the target projection position in a preset acquisition manner corresponding to the target scene.

As an optional implementation, the scene detection subunit 5210 is configured to perform scene detection through a shooting device, and the manner of obtaining the target scene specifically includes: the scene detection subunit 5210 is configured to control the top camera to rotate to shoot a panoramic image, and perform scene analysis according to the panoramic image to obtain a target scene. In this embodiment, the top camera of audio amplifier can rotate to realize 360 degrees panorama shooting, through this embodiment, can be through 360 degrees panorama shooting, accurately discern the scene that the audio amplifier was located.

Further, images of various scenes may be collected in the speaker in advance, and the scene detection subunit 5210 is configured to perform scene analysis according to the panoramic image, and obtaining the target scene may include: the scene detection subunit 5210 is configured to compare the panoramic image with a pre-stored scene image, and if the matching degree between the panoramic image and a certain scene image is higher than a threshold, obtain a scene corresponding to the certain scene image as a target scene; or, the scene detection subunit 5210 is configured to analyze scene characteristics in the panoramic image, and if a ratio of the scene characteristics of the panoramic image to the scene characteristics of a certain scene image is greater than a preset value, acquire a scene corresponding to the certain scene image as a target scene. In this embodiment, by collecting various scene images, in the actual detection process, the captured images are compared with the scene images, so that the scene can be accurately identified.

Further optionally, the main cabinet body of the loudspeaker box comprises a processor and is further provided with a control part, a camera base is rotatably connected to the top of the main cabinet body, a top camera is arranged on the camera base, the control part is electrically connected with the processor and the camera base, and the processor triggers the control part to control the camera base to rotate 360 degrees after receiving the projection instruction so as to shoot the panoramic image. In order to improve the shooting accuracy, a plurality of panoramic images can be shot continuously, so that several relatively close panoramic images can be found out through the comparative analysis of the panoramic images, and a panoramic image with higher definition can be obtained from the found panoramic images, so as to improve the determination accuracy of the projection position.

Implement above-mentioned embodiment, the audio amplifier can select the projection position according to the scene through analysis place scene after receiving the projection instruction to with the synchronous projection of the demonstration content of display screen to target projection position, need not the manual removal audio amplifier of user and select, realize the synchronous projection of the demonstration content of audio amplifier display screen, improve the intellectuality of audio amplifier, promote the degree of agreeing with the wisdom life theory.

Referring further to fig. 6, in an alternative embodiment, the position determining subunit 5220 specifically includes:

a first determining module 610, configured to detect, by a shooting device, a position where a user is located and a plane to which the user faces when a target scene is a non-specific scene; and acquiring the horizontal distance between the head of the user and the plane; and determining a first projection position from the plane by taking the horizontal distance as a basis, and taking the first projection position as a target projection position, wherein the first projection position at least comprises a projection area and a plurality of projection boundary coordinates.

In the above embodiment, the sound box detects the position of the user through the shooting device, determines the plane faced by the user, and further determines the projection position by taking the horizontal distance between the head and the plane as the sound box, so as to realize intelligent projection of the sound box.

Further optionally, the detecting, by the first determining module 610, the location of the user through the shooting device may include: the first determining module 610 captures an image through a photographing device and analyzes a user's location based on the captured image. Further, the first determining module 610 may analyze the location of the user according to the captured image, including: the first determining module 610 determines at least three objects from the space where the sound box is located according to the shot image, obtains a spatial coordinate system of the space where the at least three objects are located by taking the determined at least three objects as reference objects, and further determines the location of the user based on the determined spatial coordinate system and the sound box, wherein the at least three objects are relatively fixed objects (such as a desk, a wall lamp and the like) in the space where the at least three objects are located. In the embodiment, the position of the user can be determined in a space positioning mode, and the user can be accurately positioned.

Further, the determining, by the first determining module 610, the position of the user further includes, based on the determined spatial coordinate system and the sound box: the first determining module 610 transmits a detection signal to the head of the user and records the transmission time of the transmission detection signal, receives a reflected signal from the head of the user and records the receiving time of the transmission signal, obtains the spatial distance between the sound effect and the head of the user according to the receiving time, the transmission time and the known transmission speed of the signal, and then determines the position of the user in the spatial coordinate system based on the position of the sound box in the spatial coordinate system, so that the position of the user can be determined. The implementation mode is simple and convenient to implement, and the position of the user can be accurately positioned.

Further optionally, the first determining module 610 detects a plane faced by the user, including: the first determining module 610 determines a direction faced by the user by further analyzing the captured image after determining the position of the user, then obtains a plane in which the direction faced by the user exists by analyzing based on the determined spatial coordinate system, then selects a plane suitable for projection, and further determines a projection area and a plurality of projection boundary coordinates in the captured image based on the captured image.

As an alternative embodiment, the first determining module 610 detects a plane in another direction from the space where the sound box is located when the plane facing the user is not detected, the other direction is the direction facing the user, and if the plane in the other direction is detected, the projection position is determined from the plane. In this embodiment, the first determination module 610 detects other directions and selects an appropriate plane from the other directions for projection if it fails to find a plane that can be used for projection in the user-oriented aspect.

Further, after the first determination module 610 selects a plane from other aspects, the first determination module 610 may play a voice or output a query message on a display screen for querying whether the user agrees to project in the plane. And when receiving the consent message fed back by the user, the first determining module 610 triggers the projecting unit 530 to perform the steps of acquiring the display content of the display screen and projecting the display content to the projection position synchronously. In this embodiment, the sound box preferably projects the user in the direction in which the user faces to adapt the visual orientation of the user in front of the user, and when the user cannot determine the projection position for the user in the direction in which the user faces, the user can select the projection position from other directions.

For example, when a user uses a sound box to listen, write and report, the sound box is placed on a desktop, a listening and writing application program is opened at the front end of a display screen, and if a projection instruction is received, the position of the user and a plane facing the user can be detected, and then the projection position can be intelligently selected for the user according to the horizontal distance between the plane and the head of the listening and writing user.

As an optional implementation manner, in order to create a smart life, the sound box and other smart electronic devices in the home are connected to the smart life home control center, so as to connect all the smart electronic devices in the home, and set various working modes, such as a home mode, a learning mode, a rest mode, a leisure mode, and the like, and set a working smart electronic device and a non-working smart electronic device for different working modes, for example, after a user starts the home mode, if the user needs to turn on a lamp, an air conditioner, a television, and the like at night, after the smart life home control center starts the home mode, the smart life home control center sends a turn-on instruction to the lamp controller, the air conditioner controller, the television controller, and the like, so that the corresponding controller turns on the corresponding smart electronic device after receiving the turn-on instruction. Based on this, the smart life home control center sends a start prompt to the sound box according to the selection operation of the user on the target working mode (the target working mode is any one of the home mode, the learning mode, the rest mode or the leisure mode), wherein the start prompt is used for reminding the sound box that the target working mode is started, and when the start prompt is received, the sound box automatically starts and opens the display screen, enters a state of further detecting the user instruction, and triggers and executes the step of detecting whether the projection instruction is received. In this embodiment, can couple together the audio amplifier through wisdom life house control center, utilize the audio amplifier further to perfect wisdom life, improve quality of life.

Referring further to fig. 6, in another alternative embodiment, the position determining subunit 5220 may include:

and a second determining module 620, configured to detect, by the shooting device, a target projection position reserved in the space where the sound box is located when the target scene is a specific scene.

In this embodiment, a specific scene is generally provided with a corresponding projection position, and if the target scene is the specific scene, the reserved projection position in the space where the sound box is located is detected by the shooting device, for example, a multimedia classroom is generally provided with projection cloth or a reserved blank wall, so that when projection is performed, only the projection cloth or the blank wall needs to be detected and then projected to the projection cloth or the blank wall.

Further alternatively, the school may be equipped with a speaker for each classroom, connect the speakers for each teaching in the school teaching management center, and set the triggering condition for the speaker to turn on in each classroom according to the class schedule of each class and class, the classroom teaching schedule, or the supervision of the school teaching management center staff, for example, the classroom 101 is needed for the third class on monday (10: 20 early-11: 00 early), so the triggering condition for the speaker to turn on in the classroom 101 may be set in the school teaching management center.

Therefore, before the instruction detecting unit 510, the second determining module 620 may check whether a preset trigger condition is met, and if the preset trigger condition is met, the sound box starts itself and turns on the display screen, enters a state of further detecting a user instruction, and triggers and executes a step of detecting whether a projection instruction is received. Wherein, the trigger condition can be a lesson ring or a lesson time.

Or before executing and detecting whether the projection instruction is received, the second determining module 620 detects whether an opening instruction sent by the school teaching management center is received, and if the opening instruction is received, the sound box automatically starts and opens the display screen, and enters a state of further detecting the user instruction, and the step of executing and detecting whether the projection instruction is received is triggered.

EXAMPLE six

Referring to fig. 7, fig. 7 is a schematic structural diagram of a sound box according to another embodiment of the present invention; the sound box shown in fig. 7 is optimized based on the sound box shown in fig. 5, and the sound box shown in fig. 7 further includes:

the brightness detection unit 710 is used for acquiring the display content of the sound box display screen by the projection unit 530, and detecting the brightness value of the environment where the sound box is located before the display content is synchronously projected to the target projection position;

a time detection unit 720, configured to detect a current time when the brightness detection unit 710 detects that the brightness value is greater than the brightness threshold;

a curtain control unit 730, configured to detect whether a curtain of a window around the sound box is in an open state by the shooting device if the time detection unit 720 detects that the current time is daytime; when the curtain is in an opening state, playing preset first scene linkage music for triggering the curtain to be closed, so that an actuator for controlling the curtain closes the curtain when the first scene linkage music is detected;

and the lamp control unit 740 is configured to play preset second scenario linkage music for triggering to close the wall lamp in the environment where the sound box is located if the time detection unit 720 detects that the current time indication is at night, so that the actuator for controlling the wall lamp adjusts the brightness of the wall lamp or closes the wall lamp when detecting the second scenario linkage music.

As an optional implementation manner, when the display screen of the sound box displays a learning application (that is, when the user learns by using the sound box) and the current time indicates night, the lamp control unit 740 plays the third scene linkage music, so that the desk lamp in the environment where the sound box is located turns on the camera, turns on the desk lamp when the user is detected to be in learning, and controls the desk lamp to project the light onto a horizontal plane in a preset range in front of the user.

By implementing the embodiment, the sound box can further detect the brightness of the environment after receiving the projection instruction, if the brightness exceeds the brightness threshold, the reason that the brightness exceeds the brightness threshold is detected in a targeted manner according to the current time, and then targeted adjustment is performed, so that the projection effect is improved, and a better use feeling is provided for a user.

EXAMPLE seven

Referring to fig. 8, fig. 8 is a schematic structural diagram of a sound box according to another embodiment of the present invention. As shown in fig. 8, the sound box may include:

a memory 801 in which executable program code is stored;

a processor 802 coupled with the memory 801;

the processor 802 calls the executable program code stored in the memory 801 to execute any one of the projection display methods based on the position detection in fig. 2 to 4.

It should be noted that, in this embodiment of the application, the sound box shown in fig. 8 may further include a speaker module, a camera device, a display screen, a light projection module, a battery module, a wireless communication module (such as a mobile communication module, a WIFI module, a bluetooth module, etc.), a sensor module (such as a proximity sensor, a pressure sensor, etc.), an input module (such as a microphone, a button), and undisplayed components such as a user interface module (such as a charging interface, an external power supply interface, a card slot, a wired earphone interface, etc.).

The embodiment of the invention also discloses a computer readable storage medium which stores a computer program, wherein the computer program enables a computer to execute the projection display method based on the position detection disclosed in fig. 2 to 4.

An embodiment of the present invention further discloses a computer program product, which, when running on a computer, causes the computer to execute part or all of the steps of any one of the methods disclosed in fig. 2 to 4.

An embodiment of the present invention further discloses an application publishing platform, where the application publishing platform is configured to publish a computer program product, where when the computer program product runs on a computer, the computer is enabled to execute part or all of the steps of any one of the methods disclosed in fig. 2 to fig. 4.

It will be understood by those skilled in the art that all or part of the steps in the methods of the embodiments described above may be implemented by instructions associated with a program, which may be stored in a computer-readable storage medium, where the storage medium includes Read-Only Memory (ROM), Random Access Memory (RAM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), One-time Programmable Read-Only Memory (OTPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), compact disc-Read-Only Memory (CD-ROM), or other Memory, magnetic disk, magnetic tape, or magnetic tape, Or any other medium which can be used to carry or store data and which can be read by a computer.

The projection display method and the sound box based on the position detection disclosed by the embodiment of the invention are described in detail, a specific example is applied in the text to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims (10)

1. A projection display method based on position detection is characterized by comprising the following steps:

when the loudspeaker box display screen is in a bright screen state, detecting whether a projection instruction is received;

when the projection instruction is received, detecting a target projection position through a shooting device of the sound box;

and acquiring the display content of the loudspeaker box display screen, and synchronously projecting the display content to the target projection position.

2. The method of claim 1, wherein detecting the target projection position by a camera of the loudspeaker upon receiving the projection instruction comprises:

when the projection instruction is received, carrying out scene detection through a shooting device of the sound box to obtain a target scene, wherein the target scene comprises a specific scene or a non-specific scene;

and determining the target projection position in a preset acquisition mode corresponding to the target scene.

3. The method according to claim 2, wherein the determining the target projection position in a preset acquisition mode corresponding to the target scene comprises:

when the target scene is a non-specific scene, detecting the position of a user and a plane faced by the user through the shooting device;

acquiring the horizontal distance between the head of the user and the plane;

and determining a first projection position from the plane by taking the horizontal distance as a basis, and taking the first projection position as the target projection position, wherein the first projection position at least comprises a projection area and a plurality of projection boundary coordinates.

4. The method of claim 2, wherein the determining the target projection position in the preset acquisition mode corresponding to the target scene comprises:

and when the target scene is the specific scene, detecting a target projection position reserved in the space where the sound box is located through the shooting device.

5. The method according to any one of claims 1 to 4, wherein before the obtaining of the display content of the speaker display screen and the synchronous projection to the target projection position, the method further comprises:

detecting the brightness value of the environment where the sound box is located;

detecting a current time when the brightness value is greater than a brightness threshold;

if the current time is indicated to be in the daytime, detecting whether curtains of windows around the sound box are in an open state through the shooting device; when the curtain is in an opening state, playing preset first scene linkage music for triggering the curtain to be closed, so that an actuator for controlling the curtain closes the curtain when the first scene linkage music is detected;

and if the current time indication is at night, playing preset second scene linkage music for triggering and closing the wall lamp of the environment where the sound box is located, so that an actuator for controlling the wall lamp adjusts the brightness of the wall lamp or closes the wall lamp when detecting the second scene linkage music.

6. An acoustic enclosure, comprising:

the instruction detection unit is used for detecting whether a projection instruction is received or not when the loudspeaker box display screen is in a bright screen state;

the position detection unit is used for detecting the projection position of a target through the shooting device of the sound box when the instruction detection unit receives the projection instruction;

and the projection unit is used for acquiring the display content of the loudspeaker box display screen and synchronously projecting the display content to the target projection position.

7. The acoustic enclosure of claim 6, wherein the position detection unit comprises:

the scene detection subunit is configured to, when the instruction detection unit receives the projection instruction, perform scene detection by using a shooting device of the sound box to obtain a target scene, where the target scene includes a specific scene or a non-specific scene;

and the position determining subunit is configured to determine the target projection position in a preset acquisition manner corresponding to the target scene.

8. The loudspeaker of claim 7, wherein the position determining subunit comprises:

the first determining module is used for detecting the position of a user and a plane faced by the user through the shooting device when the target scene is a non-specific scene; and acquiring the horizontal distance between the head of the user and the plane; and determining a first projection position from the plane by taking the horizontal distance as a basis, wherein the first projection position is taken as the target projection position, and the first projection position at least comprises a projection area and a plurality of projection boundary coordinates.

9. The loudspeaker of claim 7, wherein the position determining subunit comprises:

and the second determining module is used for detecting a target projection position reserved in the space where the sound box is located through the shooting device when the target scene is the specific scene.

10. An acoustic enclosure according to any one of claims 6 to 9, further comprising:

the brightness detection unit is used for acquiring the display content of the sound box display screen by the projection unit and detecting the brightness value of the environment where the sound box is located before the display content is synchronously projected to the target projection position;

the time detection unit is used for detecting the current time when the brightness detection unit detects that the brightness value is greater than the brightness threshold value;

the curtain control unit is used for detecting whether the curtain of the window around the sound box is in an open state or not through the shooting device if the current time indication detected by the time detection unit is daytime; when the curtain is in an opening state, playing preset first scene linkage music for triggering the curtain to be closed, so that an actuator for controlling the curtain closes the curtain when the first scene linkage music is detected;

and the lamp control unit is used for playing preset second scene linkage music for triggering and closing the wall lamp in the environment where the sound box is located if the time detection unit detects that the current time indication is at night, so that an actuator for controlling the wall lamp detects that the brightness of the wall lamp is adjusted or the wall lamp is closed during the second scene linkage music.

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