WO2013000359A1

WO2013000359A1 - Lateral photography angle detection method, vertical photography angle detection method and cell phone

Info

Publication number: WO2013000359A1
Application number: PCT/CN2012/076558
Authority: WO
Inventors: 杨志兵
Original assignee: 惠州Tcl移动通信有限公司
Priority date: 2011-06-28
Filing date: 2012-06-07
Publication date: 2013-01-03
Also published as: CN102353351B; CN102353351A

Abstract

A method for detecting a lateral angle of photography comprising the following steps: constructing a three dimensional coordinate system; sensing, with respect to the x-axis, the component Ax of the acceleration of gravity g; on the basis of the acceleration of gravity g and said component Ax, obtaining a lateral rotational angle Θ; displaying the lateral angle Θ. Also disclosed are a method for vertical tilt angle detection, and a cell phone. By detecting the lateral rotational and/or vertical rotational angle of a cell phone, distortions caused by angles of photography can be prevented, resulting in better angles of photography.

Description

Bilateral shooting angle detecting method, tilt shooting angle detecting method and mobile phone

TECHNICAL FIELD The present invention relates to the field of mobile phone technologies, and in particular, to a side shooting angle detecting method, a tilt shooting angle detecting method, and a mobile phone.

Background technique

Mobile phones are becoming more and more popular in people's daily life. As a main multimedia device of mobile phones, the camera can take pictures, camera, etc. In addition, in the video call, the camera can perform face-to-face dialogue with the call object in real time. Since the mobile phone is convenient to carry and easy to use, the user can use the camera in the mobile phone to shoot at any time during life, travel and work and study, so more users tend to use the shooting function of the mobile phone.

However, during the shooting process using the prior art mobile phone camera, the deviation of the photographed photo or video angle often occurs, which affects the shooting effect, such as when the user uses the mobile phone to shoot an object, since there is no The relative horizontal plane is used for reference. When the user holds the mobile phone, the tilting (including the tilting side or the tilting side) tends to occur, which may cause the subject to be tilted. Similarly, when using the camera of the mobile phone to make a video call, if the user tilts on the handheld mobile phone, the object of the subject will be tilted in the mobile phone screen. If the user is not promptly prompted to make corrections, the video will also be directly affected. The quality of the call during the call. Therefore, it is urgent to provide a side shooting angle detecting method, a tilt shooting angle detecting method, and a mobile phone to solve the above problems.

Summary of the invention

The technical problem mainly solved by the present invention is to provide a side shooting angle detecting method and tilt shooting The angle detection method and the mobile phone prompt the user to adjust the shooting angle when the shooting angle is deviated, thereby preventing the shooting angle from being deviated, so as to achieve a better shooting effect and improve the user experience.

In order to solve the above technical problem, a technical solution adopted by the present invention is: Providing a method for detecting a side angle of shooting, for detecting a side angle of shooting of a mobile phone, comprising the following steps: (a) setting a three-dimensional coordinate on a mobile phone An X-axis, a y-axis, and a z-axis, wherein the plane formed by the X-axis and the y-axis is parallel to a plane in which the display screen of the mobile phone is located, the y-axis being placed vertically when the user holds the mobile phone and the ground , in line with the gravitational acceleration g; (b) sensing the gravitational acceleration g in the

The gravitational acceleration component ( _c ) of the X-axis acquires a lateral deflection angle according to the gravitational acceleration g and the gravitational acceleration component ;; (d) prompting the user with the lateral deflection angle. Wherein, in step c, the deflection angle ⁶ is obtained according to the following formula

Wherein step b further comprises inducing a gravitational acceleration component of the gravitational acceleration g on the y-axis. In step c, obtaining a lateral deflection angle ⁶ * according to the following formula:

Θ = arccos

Wherein, in step d, displaying a first circular angle disk icon and a first dynamic pointer icon on a display screen of the mobile phone, wherein the first dynamic pointer icon comprises a first lateral direction indicating icon disposed perpendicularly to each other And a first vertical direction indicating icon, wherein the first circular angle disk icon starts with a direction of the y-axis, and when the mobile phone rotates, the first circular angle disk icon corresponds to the mobile phone Rotating, and the angle between the first vertical direction indicating icon and the starting direction is a side deflection angle.

In order to solve the above technical problem, another technical solution adopted by the present invention is: Providing a tilt shooting angle detecting method for detecting a tilting shooting angle of a mobile phone, which comprises the following steps: (a) in the hand An x-axis, a y-axis, and a z-axis constituting a three-dimensional coordinate system are disposed on the machine, wherein a plane formed by the X-axis and the y-axis is parallel to a plane of a display screen of the mobile phone, and the y-axis holds the mobile phone by a user When placed perpendicular to the ground, in line with the gravitational acceleration g; (b) sensing the gravitational acceleration component A _{z of} the gravitational acceleration g on the z-axis; (c) according to the gravitational acceleration g and the gravitational acceleration component A _z to obtain the tilt deflection angle ^; (d) to the user to indicate the tilt deflection angle ^. Wherein, in step c, the tilt deflection angle is obtained according to the following formula

Wherein step b further comprises inducing the gravitational acceleration component g of the gravitational acceleration g on the y-axis. In step c, the oblique deflection angle is obtained according to the following formula:: β = arccos

Wherein, in step d, a second circular angle disk icon and a second dynamic pointer icon are displayed on a display screen of the mobile phone, wherein the second dynamic pointer icon comprises a second lateral direction indicating icon disposed perpendicularly to each other And a second vertical direction indicating icon, wherein the second circular angle disk icon starts with a direction of the y-axis, and when the mobile phone rotates, the second circular angle disk icon corresponds to the mobile phone Rotating, and the angle between the second vertical direction indicating icon and the starting direction is a tilting angle ^.

In order to solve the above technical problem, another technical solution adopted by the present invention is: Providing a mobile phone, comprising:

An acceleration sensor on which an X-axis, a y-axis, and a z-axis constituting a three-dimensional coordinate system are disposed, wherein a plane formed by the X-axis and the y-axis is parallel to a plane of a display screen of the mobile phone, and the y The axis is in line with the gravitational acceleration g when the user holds the mobile phone vertically with the ground, and senses the gravitational acceleration component A of the gravitational acceleration g on the X axis; a processing module, connected to the acceleration sensor, acquiring the gravity acceleration component Α from the acceleration sensor, acquiring a deflection angle ⁶ according to the gravity acceleration g and the gravity acceleration component 以及

The prompting module is connected to the processing module to prompt the user to the side deflection angle. The processing module obtains the side deflection angle ⁶ * according to the following formula:

Wherein the acceleration sensor is further configured to sense the gravity acceleration g in the y-axis gravity

Θ = arccos

The prompting module includes a first circular angle disk icon and a first dynamic pointer icon, wherein the first dynamic pointer icon includes a first side direction indicating icon and a first vertical direction indicating icon that are perpendicularly disposed to each other. The first circular angle disk icon is in a direction of the y-axis, and when the mobile phone rotates, the first circular angle disk icon corresponds to the mobile phone rotation, and the first vertical direction The angle between the indicator icon and the starting direction is a side deflection angle.

The acceleration sensor is further configured to sense a gravity acceleration component A _{z of} the gravitational acceleration g in the z-axis; the processing module is further configured to acquire according to the gravitational acceleration g and the gravitational acceleration component A _z The tilting angle of the prompting module is further configured to prompt the user to the tilting angle ^. The processing module obtains the tilt deflection angle ^ according to the following formula:

The acceleration sensor is further configured to sense a gravity acceleration component of the gravitational acceleration g on the y-axis: the processing module further obtains the tilt deflection angle according to the following formula:: β = arccos

The prompting module further includes a second circular angle disc icon and a second dynamic pointer icon, wherein the second dynamic pointer icon includes a second side direction indicating icon and a second vertical direction indicating icon that are perpendicular to each other. The second circular angle disk icon takes a direction of the y-axis as a starting direction, and when the mobile phone rotates, the second circular angle disk icon corresponds to the mobile phone rotation, and the second vertical The angle between the direction indication icon and the starting direction is a tilt deflection angle ^. The beneficial effects of the present invention are: different from the prior art, the method for detecting a side angle of shooting, the method for detecting a tilt angle, and the mobile phone disclosed by the present invention, by detecting a side deflection angle and a tilt angle of the mobile phone and prompting the user to perform an angle Adjust to prevent deviations in shooting angle deviation for better shooting and increase user experience ₍

DRAWINGS

1 is a flow chart of a preferred embodiment of a method for detecting a side angle of shooting according to the present invention; FIG. 2 is a schematic diagram of a mobile phone in a χ-y coordinate system according to a preferred embodiment of the method for detecting a side angle of shooting disclosed by the present invention; Schematic diagram

3 is a positional relationship between a first circular angle disk icon and a first dynamic pointer icon on the same line of the y-axis and the gravitational acceleration g when the user holds the mobile phone vertically with the ground;

Figure 4 is the y axis and the gravitational acceleration g are not the same when the side deflection of the user's hand-held mobile phone is Θ a first circular angle disk icon of the line and a positional relationship of the first dynamic pointer icon;

5 is a flow chart of a preferred embodiment of a tilting angle detecting method according to the present invention; FIG. 6 is a schematic diagram of a mobile phone in a y-z coordinate system according to a preferred embodiment of the tilting angle detecting method according to the present invention;

7 is a schematic structural diagram of a preferred embodiment of a mobile phone according to the present invention;

FIG. 8 is a circuit configuration diagram of another preferred embodiment of the mobile phone disclosed by the present invention.

detailed description

Referring to FIG. 1-2, FIG. 1 is a flowchart of a preferred embodiment of a method for detecting a side angle of shooting according to the present invention, and FIG. 2 is a mobile phone in a preferred embodiment of the method for detecting a side angle of shooting disclosed by the present invention. Schematic on the xy coordinate system. As shown in FIG. 1, the side of the lateral side shooting angle detecting method disclosed by the present invention includes the following steps:

Step 101: Set an X-axis, a y-axis, and a z-axis that form a three-dimensional coordinate system on the mobile phone, wherein the plane formed by the X-axis and the y-axis is parallel to the plane of the display screen of the mobile phone, and the y-axis is placed vertically when the user holds the mobile phone and the ground. , in line with the gravitational acceleration g;

Step 102: Inductive gravitational acceleration g is the gravitational acceleration component of the X axis;

': Step 103: Obtain the deflection angle based on the gravitational acceleration g and the gravitational acceleration component Α

Step 104: Prompt the user to the side deflection angle. In step 103, the yaw deflection angle ⁶ * is obtained according to the following formula.

Wherein, in step 102, the gravitational acceleration component A of the gravitational acceleration g on the y-axis is further sensed. In step 103, the lateral deflection angle ⁶ * is obtained according to the following formula: θ = arccos (2)

Since the mobile phone will always be subjected to a fixed earth's gravity on the earth, a gravitational acceleration g is generated, and its direction is always perpendicular to the horizontal direction. Therefore, when the user's hand is placed vertically on the mobile phone for shooting, The gravitational acceleration component A _{y in the} y-axis direction is equal to g, and the gravitational acceleration components ^^ and ^ ₂ on the X-axis and the _Z- axis are both zero. As shown in Fig. 2, when the mobile phone has an inclination angle (ie, a deflection angle between the y-axis and the z-axis) and the gravitational acceleration g, the gravitational acceleration g is in both the X-axis and the y-axis. The gravitational acceleration component and A _{y are} generated, and the following relationship exists between them:

A _x = g*sin(6'); (3)

A _y =g*cos(6') _; (4) where the gravitational acceleration g is a known value, where equation (3) is derived to give equation (1), and equation (4) is derived to give equation (2).

Referring to FIG. 3-4, FIG. 3 is a positional relationship between the first circular angle disk icon and the first dynamic pointer icon on the same line of the y-axis and the gravitational acceleration g when the user holds the mobile phone vertically. The positional relationship between the first circular angle disc icon and the first dynamic pointer icon in which the y-axis and the gravitational acceleration g are not on the same line when the yaw of the user's hand-held mobile phone is deflected. The first dynamic pointer icon 202 includes a first side direction indication icon 203 and a first vertical direction indication icon 204 that are perpendicular to each other.

Referring to FIG. 3, the first circular angle dial icon 201 is set to be fixed with respect to the mobile phone on the mobile phone display screen, and the first dynamic pointer icon 202 is set to rotate relative to the mobile phone on the mobile phone display screen. An angle (0° to 360°) is indicated at the edge of the first circular angle disk icon 201, wherein the 0° direction indicates a vertical upward direction of the mobile phone, and when the mobile phone is perpendicular to the horizontal plane, the first vertical direction indication icon 204 points 0° position, 90° direction indicates the side direction of the phone, when the phone is perpendicular to the horizontal plane When placed, the first lateral direction indication icon 203 points to the 90° position. The first side direction indicating icon 203 of the first dynamic pointer icon 202 is perpendicular to the first vertical direction indicating icon 204, and the first side direction indicating icon 203 is rotated along the center point of the first circular angle disk icon 201, the first vertical The direction indication icon 204 is simultaneously rotated.

As shown in FIG. 4, when the mobile phone is deflected, the first circular angle disk icon 201 rotates along with the mobile phone, and the mobile phone forms an angle with the horizontal plane, that is, the deflection angle of the mobile phone is due to the deflection of the mobile phone's lateral direction and the horizontal plane. That is, the first lateral direction indication icon 203 is rotated along the center point to adjust the angle ^θ , and the entire first dynamic pointer icon 202 is deflected along with the first lateral direction indication icon 203. At this time, the first lateral direction indication icon 203 Located on a horizontal plane, the first vertical direction indicates that the icon 204 is perpendicular to the horizontal plane. The angle between the first lateral direction indicating icon 203 and the first circular angle disk icon 201 is 90 degrees of the deflection angle of the mobile phone, and the first vertical direction indicating icon 204 and the first circular angle disk icon 201 The angle formed by 0 ° (ie the starting direction) is also the deflection angle of the phone.

Combining the formula (1) or the formula (2), the mobile phone acquires the lateral deflection angle according to the magnitude and direction of the gravity acceleration component ^^ or ^^, and converts the deflection angle ⁶ * into the first lateral direction indication icon 203. The angle with the horizontal direction. For example, when the mobile phone is deflected to the right by 20 °, the deflection angle of the mobile phone to the user is 20 °, and when the mobile phone is deflected to the left by 20 °, the deflection angle of the mobile phone to the user is 340 °.

In order to achieve better prompting effect, the prompt image can be displayed in the corner position of the mobile phone display screen, and the cycle of the prompt image is updated by the mobile phone setting, and the user is prompted to the side deflection angle of the mobile phone Θ. It should be noted that, in the present invention, the manner of prompting the deflection angle of the lateral side is not limited to the manner of prompting the first circular angle disc icon combined with the dynamic angle disc icon, and in other embodiments, the subtitle may also be used. The prompt or the voice prompt is not specifically limited in the present invention.

Through the above description, the present invention discloses a method for detecting a side angle of shooting, which is particularly suitable for a user holding a mobile phone vertically placed on the ground, and facing the subject of the shooting, as long as the user is holding the mobile phone. When the hand moves to the left or right side with respect to the horizontal plane, the mobile phone immediately prompts the user to the side angle, and the user can correct according to the prompt. However, the above method is only suitable for prompting the side shooting angle. In some cases, the user may tilt forward or backward relative to the horizontal plane when holding the mobile phone. Therefore, the present invention further provides a tilt shooting angle detecting method. In order to detect the oblique shooting angle and prompt the user, the user can correct according to the prompt.

Referring to FIG. 5-6, FIG. 5 is a flowchart of a preferred embodiment of the oblique shooting angle detecting method according to the present invention, and FIG. 6 is a yz coordinate of the mobile phone according to a preferred embodiment of the tilt shooting angle detecting method disclosed in the present invention. A schematic diagram of the system. As shown in FIG. 5, the tilt shooting angle detecting method disclosed by the present invention includes the following steps:

Step 301: Set an X-axis, a y-axis, and a z-axis that form a three-dimensional coordinate system on the mobile phone, wherein the plane formed by the X-axis and the y-axis is parallel to the plane of the display screen of the mobile phone, and the y-axis is placed vertically when the user holds the mobile phone and the ground. , in line with the gravitational acceleration g;

Step 302: A sensor gravity acceleration component of gravity g in the z-axis _z; Step 303: acquiring a gravitational acceleration g in accordance with the deflection angle of inclination and gravity acceleration component A _z

Step 304: Prompt the user to tilt the deflection angle ^. In step 303, the tilt deflection angle ^ is obtained according to the following formula:

Wherein, in step 302, the gravitational acceleration component A of the gravitational acceleration g on the y-axis is further sensed. In step 303, the deflection angle is tilted according to the following formula:: β = arccos (6)

When the phone has an inclination angle between the plane formed by the X-axis and the y-axis and the gravitational acceleration g (ie, the inclination is biased) When the angle ^ ) is turned, the gravitational acceleration g produces a gravitational acceleration component ^ in both the z-axis and the y-axis. The following relationship exists between them:

A _z = g * sin(^) _; ( 7 )

A _y = g * cos(^) _; (8) where the gravitational acceleration g is a known value, at which time equation (7) is derived to give equation (5), and equation (8) is derived to give equation (6).

In this embodiment, the second circular angle disk icon and the second dynamic pointer icon are displayed on the display screen of the mobile phone, and the first circular angle disk icon 201 and the first dynamic pointer icon are displayed as shown in FIG. 3 and FIG. 4 . The principle of 202 is the same, and is not described here again, and as described above, the prompting manner of the tilting angle ^ is not limited to the above-mentioned second circular angle disc icon combined with the second dynamic angle disc icon prompting manner, In other embodiments, a caption prompt or a voice prompt may also be used, which is not specifically limited in the present invention.

Referring to FIG. 7, FIG. 7 is a schematic structural diagram of a preferred embodiment of a mobile phone according to the present invention. As shown in FIG. 7, the mobile phone of the present invention includes: an acceleration sensor 401, a processing module 402, and a prompting module 403.

In this embodiment, the acceleration sensor 401 sets the X-axis, the y-axis, and the z-axis of the three-dimensional coordinate system on the mobile phone, wherein the plane formed by the X-axis and the y-axis is parallel to the plane of the display screen of the mobile phone, and the y-axis is held by the user. When the mobile phone is placed vertically with the ground, it is in line with the gravitational acceleration g. Accelerometer

401 respectively obtains the gravitational acceleration component of g acceleration in the X-axis and the gravitational acceleration component of g-g acceleration in the z-axis.

The processing module 402 is coupled to the acceleration sensing module 401 and acquires a gravitational acceleration component and a gravitational acceleration component A _z from the acceleration sensor 401. Wherein, the side deflection angle is obtained according to the gravity acceleration g and the gravity acceleration component A, and the tilt deflection angle ^ is obtained according to the gravity acceleration g and the gravity acceleration component A _z . The prompting module 403 is connected to the processing module, and presents the user with a lateral deflection angle ⁶ * or a tilting deflection angle ^. The prompting module 403 can preferably be a display screen of the mobile phone, and display a first circular angle disk icon on the display screen, and a second The circular angle disk icon, the first dynamic pointer icon, and the second dynamic pointer icon have the same principles as described above, and are not described herein again.

Specifically, when shooting with a mobile phone, the user may be tilted or tilted relative to the subject. When the off side occurs, the gravitational acceleration component ^ ₂ on the z-axis is zero, by detecting the gravitational acceleration on the X-axis. The component A and the gravitational acceleration g, the processing module 402 obtains the lateral deflection angle according to the following formula:

The prompting module 403 presents the user with a side deflection angle ^θ . The user can adjust the appropriate shooting angle according to the side deflection angle ⁶ * so that the mobile phone is facing the subject.

When the tilt occurs, the gravity acceleration component Α _ζ at the x-axis, the processing module 402 obtains the tilt deflection angle according to the following formula

The prompting module 403 prompts the user to tilt the deflection angle ^. The user can adjust the appropriate shooting angle according to the tilting angle ^ so that the mobile phone is facing the subject.

Referring to FIG. 8, FIG. 8 is a circuit structural diagram of another preferred embodiment of the mobile phone disclosed by the present invention. As shown in FIG. 8, the mobile phone disclosed by the present invention includes a baseband chip 701 and an acceleration sensor 702. The baseband chip 701 is the processing module 402 shown in FIG. 7, and the acceleration sensor 702 is the acceleration sensor 401 in FIG.

In this embodiment, the baseband chip 701 is connected to the acceleration sensor 702 through an I2C interface and an INT interface, and the acceleration sensor 702 can obtain an INT after acquiring the gravity acceleration component on the corresponding axis. The interface sends an interrupt signal, and the baseband chip 701 acquires an interrupt signal through the INT interface, and enters a corresponding interrupt processing program to acquire the gravity acceleration component on the corresponding axis from the acceleration sensor 702 through the I2C interface.

The method for detecting the yaw angle of the invention, the method for detecting the tilt angle and the mobile phone, and detecting the components of the gravity acceleration on the X-axis, the y-axis and the z-axis by the acceleration sensor, obtaining the tilt deflection angle and the deflection angle of the mobile phone, the user according to The tilting angle and the side deflection angle are adjusted to prevent deviations in the shooting angle deviation, so as to achieve better shooting results and improve the user experience. The above are only the embodiments of the present invention, and are not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the invention and the drawings are directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.

Claims

Rights request

A method for detecting a side angle of shooting, for detecting a side angle of shooting of a mobile phone, wherein the method comprises the following steps:

(a) setting an X-axis, a y-axis, and a z-axis constituting a three-dimensional coordinate system on the mobile phone, wherein a plane formed by the X-axis and the y-axis is parallel to a plane of a display screen of the mobile phone, and the y-axis is When the user holds the mobile phone vertically placed on the ground, it is in line with the gravitational acceleration g;

(b) sensing a gravitational acceleration component of the gravitational acceleration g on the X axis;

(c) obtaining a side deflection angle according to the gravitational acceleration g and the gravitational acceleration component Α

(d) prompting the user with the side deflection angle.

2. The method according to claim 1, wherein in the step c, the side deflection angle is obtained according to the following formula:

3. The method according to claim 1, wherein said step b further comprises sensing the gravitational acceleration g in the gravitational acceleration component A _y of the y axis, in said step (c), the following equation obtains the partial Side deflection angle ^θ :

Θ = arccos

4. The method according to claim 1, wherein in the step d, a first circular angle disk icon and a first dynamic pointer icon are displayed on a display screen of the mobile phone, wherein the first dynamic pointer icon a first side direction indicating icon and a first vertical direction indicating icon disposed perpendicularly to each other, wherein the first circular angle disk icon starts with a direction of the y-axis, and when the mobile phone rotates, the a first circular angle disc icon corresponding to the phone rotation, and the first vertical direction indicator icon The angle between the starting direction and the starting direction is the side deflection angle.

A tilting angle detecting method for detecting a tilting angle of a mobile phone, wherein the method comprises the following steps:

(b) sensing a gravitational acceleration component A _{z of} the gravitational acceleration g on the z-axis;

(c) acquiring the tilt deflection angle according to the gravity acceleration g and the gravity acceleration component A _z ^

(d) prompting the user with the tilt deflection angle ^.

6. The method according to claim 5, wherein in the step c, the tilt deflection angle is obtained according to the following formula

7. The method as claimed in claim 5, wherein said step b further comprises sensing the gravitational acceleration g in the gravitational acceleration component A _y of the y axis, in said step c, obtaining the inclination according to the following formula Deflection angle ^: β = arccos

8. The method according to claim 7, wherein in the step d, a second circular angle disk icon and a second dynamic pointer icon are displayed on a display screen of the mobile phone, wherein the second dynamic pointer icon a second side direction indicating icon and a second vertical direction indicating icon disposed perpendicularly to each other, wherein the second circular angle disk icon starts with a direction of the y-axis, and when the mobile phone rotates, the a second circular angle disc icon corresponding to the phone rotation, and the second vertical direction indicator icon The angle between the starting direction and the starting direction is the oblique deflection angle ^.

9. A mobile phone comprising:

An acceleration sensor on which an X-axis, a y-axis, and a z-axis constituting a three-dimensional coordinate system are disposed, wherein a plane formed by the X-axis and the y-axis is parallel to a plane of a display screen of the mobile phone, and the y The axis is in line with the gravitational acceleration g when the user holds the mobile phone vertically with the ground, and senses the gravitational acceleration component A of the gravitational acceleration g on the X axis;

a processing module, connected to the acceleration sensor, acquiring the gravity acceleration component A from the acceleration sensor, acquiring a deflection angle ⁶ according to the gravity acceleration g and the gravity acceleration component 以及

The prompting module is connected to the processing module to prompt the user to the side deflection angle.

10. The mobile phone according to claim 9, wherein the processing module acquires the side deflection angle ⁶ according to the following formula

11. The mobile phone according to claim 10, wherein the acceleration sensor is further configured to sense a gravity acceleration component of the gravitational acceleration g on the y-axis: the processing module further acquires the lateral deflection angle according to the following formula :

Θ = arccos

12. The mobile phone according to claim 9, wherein

The prompting module includes a first circular angle disk icon and a first dynamic pointer icon, wherein the first dynamic pointer icon includes a first side direction indicating icon and a first vertical direction indicating icon that are perpendicular to each other, the first a circular angle disk icon starts from a direction of the y-axis, and when the mobile phone rotates, the first circular angle disk icon corresponds to rotation of the mobile phone, and the first vertical The angle between the direction indication icon and the starting direction is a side deflection angle.

13. The mobile phone according to claim 9, wherein

The acceleration sensor is further configured to sense a gravity acceleration component of the gravitational acceleration g on the z-axis;

The processing module is further configured to acquire a tilt deflection angle according to the gravity acceleration g and the gravity acceleration component A _z . The prompting module is further configured to prompt the user to the tilt deflection angle ^.

14. The mobile phone according to claim 13, wherein the processing module acquires the tilt deflection angle according to the following formula

The mobile phone according to claim 14, wherein the acceleration sensor is further configured to sense a gravity acceleration component of the gravitational acceleration g on the y-axis: the processing module further acquires the tilt deflection angle according to the following formula^ : β = arccos

The mobile phone according to claim 13, wherein the prompting module further comprises a second circular angle disk icon and a second dynamic pointer icon, wherein the second dynamic pointer icon comprises a second lateral direction that is perpendicular to each other An indication icon and a second vertical direction indication icon, wherein the second circular angle disk icon starts with a direction of the y-axis, and when the mobile phone rotates, the second circular angle disk icon corresponds to The mobile phone rotates, and the angle between the second vertical direction indicating icon and the starting direction is a tilting angle ^.