WO2017032035A1

WO2017032035A1 - Method and device for adjusting, and terminal

Info

Publication number: WO2017032035A1
Application number: PCT/CN2016/080596
Authority: WO
Inventors: 王世强
Original assignee: 宇龙计算机通信科技(深圳)有限公司
Priority date: 2015-08-25
Filing date: 2016-04-29
Publication date: 2017-03-02
Also published as: CN105607733B; CN105607733A

Abstract

A method and device for adjusting, and a terminal thereof are provided. The method for adjusting includes: any two front cameras of the multiple front cameras are controlled to detect the current distance between the specific part of the user of the terminal and the screen of the terminal (102); the terminal is adjusted according to the current distance and/or the working mode of the terminal (104). By the technical solution, the screen brightness, the volume, the character size and other parameters of the terminal could be automatically adjusted, the user manual adjustment could be avoided, therefore the user experience could be improved.

Description

Adjustment method, adjustment device and terminal

The present application claims priority to Chinese Patent Application No. 201510528308.8, entitled "Adjustment Method, Regulating Device, and Terminal", filed on August 25, 2015, the entire contents of which is incorporated herein by reference. .

Technical field

The present invention relates to the field of terminal technologies, and in particular, to an adjustment method, an adjustment device, and a terminal.

Background technique

At present, the user can manually adjust the brightness of the terminal (such as a mobile phone), the size of the text, and the volume of the audio and video. However, manual adjustment by the user inevitably requires multiple operations, and the operation is cumbersome at the same time. For example, frequent switching of the terminal interface reduces the entertainment and intelligence of the terminal.

Therefore, how to avoid the user to manually adjust the screen brightness, volume and text size of the terminal, thereby improving the user experience has become an urgent problem to be solved.

Summary of the invention

The invention is based on the above problems, and proposes a new technical solution, which can automatically adjust a plurality of parameters such as screen brightness, volume size and text size of the terminal, thereby avoiding manual adjustment by the user, thereby improving the user experience.

In view of this, the first aspect of the present invention provides an adjustment method for adjusting a terminal, wherein the terminal is provided with a plurality of front cameras, and the adjusting method includes: controlling the plurality of front cameras Any two front cameras detect a current distance between a particular part of the user of the terminal and a screen of the terminal; the terminal is adjusted according to the current distance and/or the operating mode of the terminal.

In this technical solution, the terminal is automatically adjusted by detecting the current distance between a specific part of the user (such as an eye) and the screen of the terminal, and the terminal is automatically adjusted according to the working mode of the terminal, for example, the terminal is playing a video, and when the user is detected The current distance between the eye and the screen of the terminal is When it is increased, it means that the distance between the user and the terminal is getting farther and farther, which can enhance the brightness of the terminal and increase the volume of the played video, so that the user can watch the video more clearly and hear the sound clearly, avoiding the user. Manually adjust the terminal to make the terminal more intelligent and enhance the user experience.

In the above technical solution, preferably, the working mode includes: a text mode and an audio and video mode; and the step of adjusting the terminal according to the current distance and/or the working mode of the terminal, specifically: When detecting that the terminal is in the text mode, performing brightness adjustment and text parameter adjustment on the terminal according to the current distance; and when detecting that the terminal is in the audio and video mode, according to the current distance pair The terminal performs brightness adjustment and audio and video parameter adjustment.

In this technical solution, when detecting that the terminal is in the text mode, the terminal can perform brightness adjustment and text parameter adjustment according to the current distance, wherein the text parameters include, but are not limited to, font size, font thickness, font color, and font spacing. For example, when the user browses the webpage or reads the novel using the terminal, detecting that the current distance between the user's eyes and the screen of the terminal is getting farther and farther, the terminal automatically controls the font in the webpage or the novel to become larger and the font is bolded, and the height is increased. The brightness of the screen of the terminal, so that the user can see more clearly when browsing the web or reading the novel. In addition, the terminal can perform brightness adjustment and audio and video parameter adjustment on the terminal according to the current distance in the audio and video mode, wherein the audio and video parameters include, but are not limited to, volume and video resolution. For example, in the audio and video mode, when the terminal detects that the current distance between the user and the terminal is getting farther and farther, the terminal automatically adjusts the volume and changes the brightness of the terminal, thereby achieving the best effect of viewing. Through the above technical solution, the user is prevented from manually adjusting the terminal, thereby making the terminal more intelligent, thereby improving the user experience.

In the above technical solution, preferably, the step of adjusting the terminal according to the current distance and/or the working mode of the terminal specifically includes: performing brightness adjustment on the terminal according to the current distance.

In the technical solution, the terminal is adjusted according to the current distance, wherein the terminal can be in a certain working mode or in the main operation interface, and the terminal can be more intelligently adjusted by controlling the brightness of the terminal in real time, so that the user Have the best experience.

In the above technical solution, preferably, the controlling two of the plurality of front cameras The step of detecting, by the front camera, the current distance between the specific part of the user of the terminal and the screen of the terminal, specifically: acquiring each of the front positions of the specific part in the two front cameras And imaging a specific portion of the imaging surface of the camera, and obtaining a distance between the imaging point of the specific portion of each of the front cameras and a designated intersection point, wherein the designated intersection point is the An intersection between the optical axis and the imaging surface of each of the front cameras; according to a distance between a center point of the two front cameras, a focal length of the two front cameras, Determining an angle between an optical axis of any two front cameras and a distance between the imaged point of the specific portion of each of the front cameras and the designated intersection point, determining between the user and the terminal The current distance.

In this technical solution, when any two front cameras detect the current distance between a specific part of the user (such as an eye) and the screen of the terminal, the specific part of the user is in each of the front cameras of the two front cameras. A specific portion of the imaging point is formed on the imaging surface, and the current distance between the specific portion of the user (such as the eye) and the screen of the terminal can be accurately calculated by combining the optical path maps of any two front cameras with a specific portion of the user.

In the above technical solution, preferably, the focal lengths of the two front cameras are the same, and the current distance between the user and the terminal is determined by the following formula:

Where L represents the current distance, d represents the distance between the center points of any two front cameras, f represents the focal length of the two front cameras, and α represents the two front cameras An angle between the optical axes, x1 represents the distance between the imaged point of the specific portion of any of the two front cameras and the corresponding designated intersection point, and x2 represents the The distance between the imaged point of the particular portion of the other front camera of the two front cameras and the corresponding designated intersection.

In the technical solution, the above formula for calculating the current distance is created according to the optical geometric relationship. Specifically, the formula for calculating the current distance is created by the similarity relationship between the triangle where the specific part of the user is located and the triangle where the imaging point is located, thereby The current distance between the specific part of the user and the screen of the terminal is calculated more accurately and quickly.

A second aspect of the present invention provides an adjusting device for adjusting a terminal, wherein the terminal is provided with a plurality of front cameras, and the adjusting device comprises: a control unit, configured to control the plurality of Any two of the front cameras detect the current distance between the specific part of the user of the terminal and the screen of the terminal; the adjusting unit is configured to be based on the current distance and/or the terminal The working mode adjusts the terminal.

In this technical solution, the terminal is automatically adjusted by detecting the current distance between a specific part of the user (such as an eye) and the screen of the terminal, and the terminal is automatically adjusted according to the working mode of the terminal, for example, the terminal is playing a video, and when the user is detected When the current distance between the eye and the screen of the terminal is increasing, it means that the distance between the user and the terminal is farther and farther, the brightness of the terminal can be enhanced and the volume of the played video can be increased, so that the user can clearly and clearly Watching the video and clearly hearing the sound avoids the user manually adjusting the terminal, making the terminal more intelligent and improving the user experience.

In the above technical solution, preferably, the working mode includes: a text mode and an audio and video mode; and the adjusting unit is specifically configured to: when detecting that the terminal is in the text mode, according to the current distance The terminal performs brightness adjustment and text parameter adjustment; when detecting that the terminal is in the audio and video mode, performing brightness adjustment and audio and video parameter adjustment on the terminal according to the current distance.

In the above technical solution, preferably, the adjusting unit is configured to perform brightness adjustment on the terminal according to the current distance.

In the above technical solution, preferably, the control unit includes: an acquiring unit, configured to acquire a specific part imaging point of the specific portion on an imaging surface of each of the two front cameras And obtaining a distance between the imaging point of the specific portion of each of the front cameras and a designated intersection point, wherein the designated intersection point is an optical axis of each of the front cameras and each of the front cameras An intersection between the imaging planes; a determining unit for determining a distance between the center points of the two front cameras, a focal length of the two front cameras, the two front positions The current distance between the user and the terminal is determined by an angle between optical axes of the camera and a distance between the imaged point of the particular portion of each of the front cameras and the designated intersection.

In the above technical solution, preferably, the focal lengths of the two front cameras are the same, and the determining unit is specifically configured to determine the current distance between the user and the terminal by using the following formula:

In the technical solution, the above formula for calculating the current distance is created according to the optical geometric relationship. Specifically, the formula for calculating the current distance is created by the similarity relationship between the triangle where the specific part of the user is located and the triangle where the imaging point is located, thereby Calculate accurately and quickly The current distance between the specific part of the user and the screen of the terminal is obtained.

A third aspect of the present invention provides a terminal, wherein the terminal is provided with a plurality of front cameras, the terminal includes a processor and a memory, wherein the memory stores a set of program codes, and the processor uses The program code stored in the memory is called to perform the following operations:

Controlling that any two of the plurality of front cameras detect a current distance between a specific portion of a user of the terminal and a screen of the terminal;

The terminal is adjusted according to the current distance and/or the working mode of the terminal.

Preferably, the working mode comprises: a text mode and an audio and video mode; and the specific step of the processor adjusting the terminal according to the current distance and/or the working mode of the terminal is:

When detecting that the terminal is in the text mode, performing brightness adjustment and text parameter adjustment on the terminal according to the current distance;

When it is detected that the terminal is in the audio and video mode, the terminal is subjected to brightness adjustment and audio and video parameter adjustment according to the current distance.

Preferably, the specific step of the processor adjusting the terminal according to the current distance and/or the working mode of the terminal is:

Adjusting the brightness of the terminal according to the current distance.

Preferably, the specific step of the processor controlling any one of the plurality of front cameras to detect a current distance between a specific part of the user of the terminal and a screen of the terminal is:

Obtaining a specific part imaging point of the specific part on an imaging surface of each of the two front cameras, and acquiring the specific part imaging point and the designated intersection of each of the front cameras a distance between the optical axis of each of the front cameras and the imaging surface of each of the front cameras;

Depending on the distance between the center points of any two front cameras, the focal length of the two front cameras, the angle between the optical axes of any two front cameras, and each of the front Determining a distance between the imaged point of the specific portion of the camera and the designated intersection point to determine the current distance between the user and the terminal.

Preferably, the focal lengths of the two front cameras are the same,

The processor is specifically configured to determine the current distance between the user and the terminal by using the following formula:

Through the technical solution of the invention, multiple parameters such as screen brightness, volume size and text size of the terminal can be automatically adjusted, thereby avoiding manual adjustment by the user, thereby improving the user experience.

DRAWINGS

1 is a flow chart showing an adjustment method according to an embodiment of the present invention;

2 is a flow chart showing an adjustment method according to another embodiment of the present invention;

Figure 3 is a block diagram showing the structure of an adjusting device according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention; FIG.

Figure 5 is a schematic illustration of the optical path of a dual front camera in accordance with one embodiment of the present invention;

6 shows a schematic diagram of an optical path of a dual front camera according to another embodiment of the present invention;

FIG. 7 shows a schematic structural diagram of a terminal according to another embodiment of the present invention.

detailed description

The above described objects, features and advantages of the present invention will become more apparent from the detailed description of the appended claims. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to facilitate a full understanding of the invention, but the invention may be practiced in other embodiments than described herein. The scope of protection is not limited by the specific embodiments disclosed below.

Figure 1 shows a flow diagram of an adjustment method in accordance with one embodiment of the present invention.

As shown in FIG. 1 , an adjustment method according to an embodiment of the present invention is used to adjust a terminal, and the terminal is provided with a plurality of front cameras, and the adjustment method includes:

Step 102: Control any two of the plurality of front cameras to detect a current distance between a specific part of the user of the terminal and a screen of the terminal;

Step 104: Adjust the terminal according to the current distance and/or the working mode of the terminal.

In the above technical solution, preferably, the working mode includes: a text mode and an audio and video mode; and step 104, specifically: when detecting that the terminal is in the text mode, the terminal is according to the current distance Performing brightness adjustment and text parameter adjustment; when detecting that the terminal is in the audio and video mode, performing brightness adjustment and audio and video parameter adjustment on the terminal according to the current distance.

In this technical solution, when detecting that the terminal is in the text mode, the terminal can perform brightness adjustment and text parameter adjustment according to the current distance, wherein the text parameters include, but are not limited to, font size, font thickness, font color, and font spacing. For example, when the user browses the webpage or reads the novel using the terminal, detecting that the current distance between the user's eyes and the screen of the terminal is getting farther and farther, the terminal automatically controls the font in the webpage or the novel to become larger and the font is bolded, and the height is increased. The brightness of the screen of the terminal, so that the user can see more clearly when browsing the web or reading the novel. In addition, the terminal can perform brightness adjustment and audio and video parameter adjustment on the terminal according to the current distance in the audio and video mode, wherein the audio and video parameters include, but are not limited to, volume and video resolution. For example, in the audio and video mode, when the terminal detects that the current distance between the user and the terminal is getting farther and farther, Automatically adjust the volume and change the brightness of the terminal to achieve the best results. Through the above technical solution, the user is prevented from manually adjusting the terminal, thereby making the terminal more intelligent, thereby improving the user experience.

In the above technical solution, preferably, the step 104 includes: performing brightness adjustment on the terminal according to the current distance.

In the above technical solution, preferably, the step 102 includes: acquiring a specific part imaging point of the specific part on an imaging surface of each of the two front cameras, and acquiring the a distance between the imaging point of the specific portion of each front camera and a designated intersection point, wherein the designated intersection point is an optical axis of each of the front cameras and the imaging surface of each of the front cameras The intersection between the centers of the two front cameras, the focal length of the two front cameras, the angle between the optical axes of any two front cameras, and Determining a distance between the specific portion of the image of the front camera and the designated intersection point, and determining the current distance between the user and the terminal.

2 is a flow chart showing an adjustment method according to another embodiment of the present invention.

As shown in FIG. 2, an adjustment method according to another embodiment of the present invention (in this embodiment, the terminal is a mobile phone, and the mobile phone is provided with a dual front camera), including:

Step 202: Detect the current distance L between the user's eyes and the screen of the mobile phone through the dual front camera.

Step 204: Obtain a working mode of the mobile phone, when the mobile phone is in the state of loading the webpage or displaying the information state (when the mobile phone is in the text mode), adjust the screen brightness and the text size of the mobile phone according to the current distance; when the mobile phone is in the playing video or music state ( When the mobile phone is in the audio and video state, adjust the screen brightness and volume of the mobile phone according to the current distance.

Fig. 3 shows a schematic structural view of an adjusting device according to an embodiment of the present invention.

As shown in FIG. 3, an adjusting device 300 according to an embodiment of the present invention is used for adjusting a terminal. The terminal is provided with a plurality of front cameras, and the adjusting device 300 includes: a control unit 302 for controlling the terminal. ???said two front cameras of the plurality of front cameras detect a current distance between a specific part of the user of the terminal and a screen of the terminal; the adjusting unit 304 is configured to use the current distance and/or the The working mode of the terminal adjusts the terminal.

In the above technical solution, preferably, the working mode includes: a text mode and an audio and video mode; and the adjusting unit 304 is specifically configured to: when detecting that the terminal is in the text In the mode, performing brightness adjustment and text parameter adjustment on the terminal according to the current distance; and when detecting that the terminal is in the audio and video mode, performing brightness adjustment and audio and video parameter adjustment on the terminal according to the current distance .

In the above technical solution, preferably, the adjusting unit 304 is configured to perform brightness adjustment on the terminal according to the current distance.

In the above technical solution, preferably, the control unit 302 includes: an obtaining unit 3022, configured to acquire a specific part of the imaging surface of the front camera of each of the two front cameras An imaging point, and a distance between the imaging point of the specific portion of each of the front cameras and a designated intersection point, wherein the designated intersection point is an optical axis of each of the front cameras and each of the front An intersection between the imaging faces of the camera; a determining unit 3024 for determining a distance between the center points of the two front cameras, a focal length of the two front cameras, and any two of the two front cameras Determining the angle between the optical axes of the front cameras and the distance between the imaged points of the specific portion of each of the front cameras and the designated intersection, determining the between the user and the terminal Current distance.

In the above technical solution, preferably, the focal lengths of the two front cameras are the same, and the determining unit 3024 is specifically configured to determine the current distance between the user and the terminal by using the following formula:

FIG. 4 shows a schematic structural diagram of a terminal according to an embodiment of the present invention.

As shown in FIG. 4, a terminal 400 according to an embodiment of the present invention includes the adjustment device 300 according to any one of the above aspects, and therefore, the terminal 400 has the adjustment described in any one of the above technical solutions. The same technical effects of the device 300 are not described herein.

Figure 5 is a schematic illustration of the optical path of a dual front camera in accordance with one embodiment of the present invention; and Figure 6 is a schematic illustration of the optical path of a dual front camera in accordance with another embodiment of the present invention.

The technical solution of the present invention is described in detail below with reference to FIG. 5 and FIG. 6 (in this embodiment, the terminal is a mobile phone, and the mobile phone is provided with a dual front camera, that is, a front camera A and a front camera B):

As shown in FIG. 5, there is a certain angle between the optical axes of the front camera A and the front camera B, and M points (specific portions of the user) are formed on the imaging surfaces of the front camera A and the front camera B. Imaging point (specific part imaging point), front camera A and corresponding designated intersection (previous The distance between the optical axis of the camera A and the imaging surface of the front camera A is x1, and the front camera B and the corresponding designated intersection point (the optical axis of the front camera B and the imaging surface of the front camera B) The distance between the intersection points is x2, the angle between the front camera A and the optical axis of the front camera B is α, and the distance L between the M point and the front camera A and the front camera B (ie, the user's specific The current distance between the part and the screen of the terminal), the focal lengths of the front camera A and the front camera B are f, and the distance between the center points of the front camera A and the front camera B is d, according to the optical path diagram The similarity principle of the triangle can get the following formula:

Then, according to the above formula, the formula for obtaining the distance L between the M point and the front camera A and the front camera B is:

Therefore, the distance between the M point and the front camera A and the front camera B can be accurately calculated by the calculation formula of L.

As shown in FIG. 6, the optical axes of the front camera A and the front camera B are parallel, that is, the angle between the optical axes of the front camera A and the front camera B is α=0°, in the front camera A. An imaging point (a specific part imaging point) of the M point (a specific part of the user) is formed on the imaging surface of the front camera B, and the front camera A and the corresponding designated intersection point (the optical axis of the front camera A and the front camera) The distance between the intersections of the imaging planes of A is x1, and the distance between the front camera B and the corresponding designated intersection (the intersection of the optical axis of the front camera B and the imaging surface of the front camera B) is x2, M The distance L between the point and the front camera A and the front camera B (ie, the current distance between the specific part of the user and the screen of the terminal), the focal lengths of the front camera A and the front camera B are both f, front The distance between the center point of the camera A and the front camera B is d. According to the similarity principle of the triangle in the light path diagram, the following formula can be obtained:

The technical solution of the present invention is described in detail above with reference to the accompanying drawings, and multiple parameters such as screen brightness, volume size, and text size of the terminal can be automatically adjusted, thereby avoiding manual adjustment by the user, thereby improving the user experience.

FIG. 7 is a block diagram showing the structure of a terminal according to another embodiment of the present invention. As shown in FIG. 7, the terminal 7 may include: at least one processor 71, such as a CPU, at least one communication bus 72, and a memory 73; The bus 72 is used to implement connection communication between these components; the memory 73 may be a high speed RAM memory or a non-volatile memory such as at least one disk memory. A plurality of front cameras are disposed on the terminal. A set of program codes is stored in the memory 73, and the processor 71 is configured to call the program code stored in the memory 73 for performing the following operations:

Controlling that any two of the plurality of front cameras detect a current distance between a specific portion of the user of the terminal 7 and a screen of the terminal 7;

The terminal 7 is adjusted according to the current distance and/or the operating mode of the terminal 7.

Optionally, the working mode includes: a text mode and an audio and video mode; and the specific step of the processor 71 adjusting the terminal 7 according to the current distance and/or the working mode of the terminal 7 is:

When detecting that the terminal 7 is in the text mode, performing brightness adjustment and text parameter adjustment on the terminal 7 according to the current distance;

When it is detected that the terminal 7 is in the audio and video mode, the terminal 7 is subjected to brightness adjustment and audio and video parameter adjustment according to the current distance.

Optionally, the specific step of the processor 71 adjusting the terminal 7 according to the current distance and/or the working mode of the terminal 7 is:

The terminal 7 is subjected to brightness adjustment according to the current distance.

Optionally, the processor 71 controls a specific step of detecting, by any one of the plurality of front cameras, a current distance between a specific part of the user of the terminal 7 and a screen of the terminal 7 for:

Depending on the distance between the center points of any two front cameras, the focal length of the two front cameras, the angle between the optical axes of any two front cameras, and each of the front Determining a distance between the imaged point of the specific portion of the camera and the designated intersection point to determine the current distance between the user and the terminal 7.

Optionally, the focal lengths of the two front cameras are the same,

The processor 71 is specifically configured to determine the current distance between the user and the terminal 7 by using the following formula:

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and scope of the present invention are intended to be included in the present invention. Within the scope of protection.

Claims

An adjustment method for adjusting a terminal, wherein the terminal is provided with a plurality of front cameras, and the adjusting method comprises:

Controlling that any two of the plurality of front cameras detect a current distance between a specific portion of a user of the terminal and a screen of the terminal;

The terminal is adjusted according to the current distance and/or the working mode of the terminal.
The adjustment method according to claim 1, wherein the operation mode comprises: a text mode and an audio and video mode; and the adjusting the terminal according to the current distance and/or an operation mode of the terminal The steps specifically include:

When detecting that the terminal is in the text mode, performing brightness adjustment and text parameter adjustment on the terminal according to the current distance;

When it is detected that the terminal is in the audio and video mode, the terminal is subjected to brightness adjustment and audio and video parameter adjustment according to the current distance.
The adjusting method according to claim 1, wherein the step of adjusting the terminal according to the current distance and/or the working mode of the terminal specifically includes:

Adjusting the brightness of the terminal according to the current distance.
The adjustment method according to any one of claims 1 to 3, wherein the control of any one of the plurality of front cameras detects a specific part of a user of the terminal and the The steps of the current distance between the screens of the terminal specifically include:

Obtaining a specific part imaging point of the specific part on an imaging surface of each of the two front cameras, and acquiring the specific part imaging point and the designated intersection of each of the front cameras a distance between the optical axis of each of the front cameras and the imaging surface of each of the front cameras;

Depending on the distance between the center points of any two front cameras, the focal length of the two front cameras, the angle between the optical axes of any two front cameras, and each of the front Determining a distance between the imaged point of the specific portion of the camera and the designated intersection point to determine the current distance between the user and the terminal.
The adjustment method according to claim 4, wherein said two pre-shots The focal length of the head is the same,

The determining unit is specifically configured to determine the current distance between the user and the terminal by using the following formula:

Where L represents the current distance, d represents the distance between the center points of any two front cameras, f represents the focal length of the two front cameras, and α represents the two front cameras An angle between the optical axes, x1 represents the distance between the imaged point of the specific portion of any of the two front cameras and the corresponding designated intersection point, and x2 represents the The distance between the imaged point of the particular portion of the other front camera of the two front cameras and the corresponding designated intersection.
An adjusting device for adjusting a terminal, wherein the terminal is provided with a plurality of front cameras, and the adjusting device comprises:

a control unit, configured to control, by any one of the plurality of front cameras, a current distance between a specific part of the user detecting the terminal and a screen of the terminal;

And an adjusting unit, configured to adjust the terminal according to the current distance and/or an operating mode of the terminal.
The adjusting device according to claim 6, wherein the working mode comprises: a text mode and an audio and video mode; and the adjusting unit is specifically configured to:

When detecting that the terminal is in the text mode, performing brightness adjustment and text parameter adjustment on the terminal according to the current distance;

When it is detected that the terminal is in the audio and video mode, the terminal is subjected to brightness adjustment and audio and video parameter adjustment according to the current distance.
The adjusting device according to claim 6, wherein the adjusting unit is specifically configured to

Adjusting the brightness of the terminal according to the current distance.
The adjustment device according to any one of claims 6 to 8, wherein the control unit comprises:

An acquiring unit, configured to acquire a specific part imaging point of the specific part on an imaging surface of each of the two front cameras, and acquire the specific part of each of the front cameras a distance between the imaging point and the designated intersection point, wherein the designated intersection point is an intersection between an optical axis of each of the front cameras and the imaging surface of each of the front cameras;

Determining a unit according to a distance between a center point of the two front cameras, a focal length of the two front cameras, an angle between optical axes of the two front cameras, and The distance between the imaged point of the specific portion of each front camera and the designated intersection point determines the current distance between the user and the terminal.
The adjusting device according to claim 9, wherein the focal lengths of the two front cameras are the same, and the current distance between the user and the terminal is determined by the following formula:

Where L represents the current distance, d represents the distance between the center points of any two front cameras, f represents the focal length of the two front cameras, and α represents the two front cameras An angle between the optical axes, x1 represents the distance between the imaged point of the specific portion of any of the two front cameras and the corresponding designated intersection point, and x2 represents the The distance between the imaged point of the particular portion of the other front camera of the two front cameras and the corresponding designated intersection.
A terminal, wherein the terminal is provided with a plurality of front cameras, the terminal includes a processor and a memory, wherein the memory stores a set of program codes, and the processor is configured to invoke the Program code stored in memory to perform the following operations:

Controlling that any two of the plurality of front cameras detect a current distance between a specific portion of a user of the terminal and a screen of the terminal;

The terminal is adjusted according to the current distance and/or the working mode of the terminal.
The terminal according to claim 11, wherein said working mode comprises: a text mode and an audio and video mode; and said processor is based on said current distance and/or said terminal The specific steps of the working mode for adjusting the terminal are:

When detecting that the terminal is in the text mode, performing brightness adjustment and text parameter adjustment on the terminal according to the current distance;

When it is detected that the terminal is in the audio and video mode, the terminal is subjected to brightness adjustment and audio and video parameter adjustment according to the current distance.
The terminal according to claim 11, wherein the specific step of the processor adjusting the terminal according to the current distance and/or the working mode of the terminal is:

Adjusting the brightness of the terminal according to the current distance.
The terminal according to any one of claims 11 to 13, wherein the processor controls any two of the plurality of front cameras to detect a specific part and a user of the user of the terminal The specific steps of the current distance between the screens of the terminal are:

Obtaining a specific part imaging point of the specific part on an imaging surface of each of the two front cameras, and acquiring the specific part imaging point and the designated intersection of each of the front cameras a distance between the optical axis of each of the front cameras and the imaging surface of each of the front cameras;

Depending on the distance between the center points of any two front cameras, the focal length of the two front cameras, the angle between the optical axes of any two front cameras, and each of the front Determining a distance between the imaged point of the specific portion of the camera and the designated intersection point to determine the current distance between the user and the terminal.
The terminal according to claim 14, wherein the focal lengths of the two front cameras are the same.

The processor is specifically configured to determine the current distance between the user and the terminal by using the following formula:

Where L represents the current distance, d represents the distance between the center points of any two front cameras, f represents the focal length of the two front cameras, and α represents the two front cameras The angle between the optical axes, x1 represents any of the two front cameras a distance between the specific portion of the image point of the head and the corresponding designated intersection point, and x2 representing the specific portion of the image of the other of the two front cameras Specify the distance between intersections.