CN110806801A - Prompting method and mobile terminal - Google Patents
Prompting method and mobile terminal Download PDFInfo
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- CN110806801A CN110806801A CN201911047344.7A CN201911047344A CN110806801A CN 110806801 A CN110806801 A CN 110806801A CN 201911047344 A CN201911047344 A CN 201911047344A CN 110806801 A CN110806801 A CN 110806801A
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- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
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Abstract
The invention provides a prompting method and a mobile terminal, and relates to the technical field of mobile terminals. The method comprises the following steps: determining a first included angle between the first connecting line and the second connecting line; the center of the eyes of the user and the center point of the mobile terminal are positioned on a first connecting line, the center of the eyes of the user and a target point are positioned on a second connecting line, and the target point is an intersection point of the user sight line and the target axis when the user sight line is perpendicular to the target axis; determining a second included angle between the third connecting line and the fourth connecting line; the top of the user head and the central point are positioned on a third connecting line, and the bottom of the user foot and the central point are positioned on a fourth connecting line; when the first included angle is not within the first preset angle range, outputting first prompt information; and when the second included angle is not within the second preset angle range, outputting second prompt information. According to the invention, the offset angle generated by the sight of the user on the two unparallel planes can be determined, and then when the offset angle does not meet the corresponding angle range, prompt information is output, so that the user can adjust the placement posture of the mobile terminal, and the watching effect is better.
Description
Technical Field
The invention relates to the technical field of mobile terminals, in particular to a prompting method and a mobile terminal.
Background
Nowadays, a large screen is a popular development trend of a mobile terminal, and a full screen, a double-sided screen and a folding screen are different expression forms of the large-screen mobile terminal. When a user watches videos and carries out a video conference on a mobile terminal with a large screen, the mobile terminal is usually placed on a desktop isoplanar, at the moment, the placing posture of the mobile terminal can influence the watching effect, and the unsuitable placing posture can make the watching effect worse. For example, the folding screen can be folded up and down by inward folding, outward folding, even 360 degrees are folded, and the folding mode of the folding screen directly influences the placing posture, so that when a user watches videos or video calls through the folding screen in a long distance, an improper folding angle and the like can have adverse effects on the watching effect.
Disclosure of Invention
The invention provides a prompting method and a mobile terminal, and aims to solve the problem that the viewing effect is influenced by the improper placing posture of the mobile terminal.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, a method for prompting includes:
determining a first included angle between the first connecting line and the second connecting line; the center of the eyes of the target user and the center point of the mobile terminal are both located on the first connecting line, the center of the eyes and the target point are both located on the second connecting line, the target point is the intersection point of the sight of the target user and the target axis under the condition that the sight of the target user is perpendicular to the target axis, the center point is located on the target axis, and the target axis is parallel to the body plane of the target user and perpendicular to the height direction of the target user;
determining a second included angle between the third connecting line and the fourth connecting line; the top of the head and the central point of the target user are both positioned on the third connecting line, and the sole and the central point of the target user are both positioned on the fourth connecting line;
when the first included angle is not within a first preset angle range, outputting first prompt information; the first prompt information is used for prompting the target user to adjust the placing posture of the mobile terminal along the plane of the first included angle;
when the second included angle is not within a second preset angle range, outputting second prompt information; and the second prompt information is used for prompting the target user to adjust the placing posture of the mobile terminal along the plane of the second included angle.
In a second aspect, an embodiment of the present invention further provides a mobile terminal, where the mobile terminal includes:
the first determining module is used for determining a first included angle between the first connecting line and the second connecting line; the center of the eyes of the target user and the center point of the mobile terminal are both located on the first connecting line, the center of the eyes and the target point are both located on the second connecting line, the target point is the intersection point of the sight of the target user and the target axis under the condition that the sight of the target user is perpendicular to the target axis, the center point is located on the target axis, and the target axis is parallel to the body plane of the target user and perpendicular to the height direction of the target user;
the second determining module is used for determining a second included angle between the third connecting line and the fourth connecting line; the top of the head and the central point of the target user are both positioned on the third connecting line, and the sole and the central point of the target user are both positioned on the fourth connecting line;
the first output module is used for outputting first prompt information when the first included angle is not within a first preset angle range; the first prompt information is used for prompting the target user to adjust the placing posture of the mobile terminal along the plane of the first included angle;
the second output module is used for outputting second prompt information when the second included angle is not within a second preset angle range; and the second prompt information is used for prompting the target user to adjust the placing posture of the mobile terminal along the plane of the second included angle.
In a third aspect, an embodiment of the present invention further provides a mobile terminal, where the mobile terminal includes a processor, a memory, and a computer program stored on the memory and capable of running on the processor, and when the computer program is executed by the processor, the steps of the prompting method according to the present invention are implemented.
In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the prompting method according to the present invention are implemented.
In the embodiment of the present invention, the mobile terminal may first determine a first included angle between the first connection line and the second connection line, and a second included angle between the third connection line and the fourth connection line. The center of the two eyes of the target user and the center point of the mobile terminal are both positioned on the first connecting line; the center of the eyes and the target point are both positioned on the second connecting line, the target point is the intersection point of the sight of the target user and the target axis under the condition of being vertical to the target axis, the center point is positioned on the target axis, and the target axis is parallel to the body plane of the target user and is vertical to the height direction of the target user; the vertex and the center point of the target user are both positioned on the third connecting line; the sole and the central point of the target user are both positioned on the fourth connecting line. That is, the plane of the first included angle is not parallel to the plane of the second included angle. And then when the first included angle is not within the first preset angle range, the mobile terminal can output first prompt information for prompting a target user to adjust the placing posture of the mobile terminal along the plane where the first included angle is located, and when the second included angle is not within the second preset angle range, the mobile terminal can output second prompt information for prompting the target user to adjust the placing posture of the mobile terminal along the plane where the second included angle is located. In the embodiment of the invention, the mobile terminal can measure and calculate the offset angles of the sight of the target user on two non-parallel plane dimensions, namely the first included angle and the second included angle, and further when the first included angle and the second included angle are not in the corresponding preset angle range, the mobile terminal can output corresponding prompt information to prompt the target user to adjust the placing posture of the mobile terminal on the two non-parallel plane dimensions, so that the viewing experience is more comfortable, and the viewing effect of the picture is better.
Drawings
Fig. 1 is a flowchart illustrating a prompting method according to a first embodiment of the present invention;
FIG. 2 is a flowchart illustrating a hinting method according to a second embodiment of the present invention;
fig. 3 is a schematic diagram of a target user watching a mobile terminal according to a second embodiment of the present invention;
FIG. 4 is a schematic diagram of a first plane in a second embodiment of the present invention;
FIG. 5 is a schematic diagram of a second plane in a second embodiment of the present invention;
fig. 6 is a block diagram illustrating a mobile terminal according to a third embodiment of the present invention;
fig. 7 is a block diagram showing another mobile terminal according to a third embodiment of the present invention;
fig. 8 is a block diagram illustrating a first determination submodule in the third embodiment of the present invention;
fig. 9 is a block diagram showing a second determination submodule in the third embodiment of the present invention;
fig. 10 is a diagram illustrating a hardware structure of a mobile terminal according to various embodiments 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 some, not all, embodiments of the present invention. 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.
Example one
Referring to fig. 1, a flowchart of a prompting method according to a first embodiment of the present invention is shown, which may specifically include the following steps:
In the embodiment of the invention, when the target user uses the mobile terminal to watch the video, carry out video call, or carry out video conference, the initial placing posture of the mobile terminal may cause the mobile terminal to have a certain offset with the center of the eyes of the target user. When the deviation is large, the target user may be affected to view the screen, for example, the target user may not be able to view a clear picture due to screen polarization, and the like. In practical application, compared with the situation that the target user looks at the central point of the mobile terminal, that is, the sight line of the target user does not have offset, when the target user cannot observe a clear picture, a certain offset angle exists between the centers of the two eyes of the target user and the central point of the mobile terminal on at least one plane.
The target axis is parallel to the body plane of the target user and perpendicular to the height direction of the target user, and the center point of the mobile terminal is also located on the target axis. Under the condition that the sight line of the target user does not deviate in the left-right direction, the sight line of the target user is perpendicular to the target axis, in this case, the intersection point of the sight line of the target user and the target axis is the target point, and the connecting line between the center of the eyes of the target user and the target point is the second connecting line. And when the mobile terminal is placed in the initial placing posture and correspondingly the sight line of the target user deviates in the left-right direction, the connecting line between the center of the two eyes of the target user and the center point of the mobile terminal is the first connecting line. The mobile terminal may determine a first included angle between the first connection line and the second connection line, that is, an offset angle generated by the line of sight of the target user on a plane where the first included angle is located, relative to the front view situation.
In the embodiment of the present invention, when the target user cannot observe a clear picture, the line of sight of the target user may have a certain offset angle not only in one plane dimension, but also in another non-parallel plane dimension, that is, the line of sight of the target user has a certain offset angle in a spatial dimension.
A connecting line between the top of the head of the target user and the central point of the mobile terminal is a third connecting line, and a connecting line between the sole of the target user and the central point of the mobile terminal is a fourth connecting line. The plane where the first included angle is located is not parallel to the plane where the second included angle is located, that is, the mobile terminal can measure and calculate the offset angles generated by the sight of the target user in two non-parallel plane dimensions respectively.
It should be noted that, in the embodiment of the present invention, the execution sequence of step 101 and step 102 is not specifically limited.
103, outputting first prompt information when the first included angle is not within a first preset angle range; the first prompt information is used for prompting a target user to adjust the placing posture of the mobile terminal along the plane where the first included angle is located.
In the embodiment of the invention, when the user watches comfortably and the watching effect is better, the offset angle range of the sight line of the user on the plane of the first included angle can be actually measured in advance, and then the offset angle range can be stored in the mobile terminal as the first preset angle range. And then when first contained angle is not in first predetermined angular range, mobile terminal can export first suggestion information to the suggestion target user adjusts mobile terminal's posture of putting along the plane at first contained angle place, thereby makes to watch the impression more comfortable, and the viewing effect of picture is also better.
104, outputting second prompt information when the second included angle is not within a second preset angle range; the second prompt information is used for prompting the target user to adjust the placing posture of the mobile terminal along the plane where the second included angle is located.
In the embodiment of the invention, when the user watches comfortably and the watching effect is better, the offset angle range of the sight line of the user on the plane of the second included angle can be actually measured in advance, and then the offset angle range can be stored in the mobile terminal as the second preset angle range. And then when the second contained angle is not in the second preset angle scope, mobile terminal can output second prompt message to the suggestion target user adjusts mobile terminal's the posture of putting along the plane at second contained angle place, so, can all make the adjustment with mobile terminal's posture of putting on two nonparallel plane dimensions, thereby make to watch the impression more comfortable, the viewing effect of picture is also better.
It should be noted that, in the embodiment of the present invention, the execution sequence of step 103 and step 104 is not specifically limited.
In the embodiment of the present invention, the mobile terminal may first determine a first included angle between the first connection line and the second connection line, and a second included angle between the third connection line and the fourth connection line. The center of the two eyes of the target user and the center point of the mobile terminal are both positioned on the first connecting line; the center of the eyes and the target point are both positioned on the second connecting line, the target point is the intersection point of the sight of the target user and the target axis under the condition of being vertical to the target axis, the center point is positioned on the target axis, and the target axis is parallel to the body plane of the target user and is vertical to the height direction of the target user; the vertex and the center point of the target user are both positioned on the third connecting line; the sole and the central point of the target user are both positioned on the fourth connecting line. That is, the plane of the first included angle is not parallel to the plane of the second included angle. And then when the first included angle is not within the first preset angle range, the mobile terminal can output first prompt information for prompting a target user to adjust the placing posture of the mobile terminal along the plane where the first included angle is located, and when the second included angle is not within the second preset angle range, the mobile terminal can output second prompt information for prompting the target user to adjust the placing posture of the mobile terminal along the plane where the second included angle is located. In the embodiment of the invention, the mobile terminal can measure and calculate the offset angles of the sight of the target user on two non-parallel plane dimensions, namely the first included angle and the second included angle, and further when the first included angle and the second included angle are not in the corresponding preset angle range, the mobile terminal can output corresponding prompt information to prompt the target user to adjust the placing posture of the mobile terminal on the two non-parallel plane dimensions, so that the viewing experience is more comfortable, and the viewing effect of the picture is better.
Example two
Referring to fig. 2, a flowchart of a prompting method according to a second embodiment of the present invention is shown, which may specifically include the following steps:
Fig. 3 shows a schematic view of a target user looking at the mobile terminal, fig. 4 shows a schematic view of a first plane, fig. 5 shows a schematic view of a second plane, wherein, referring to fig. 3, 4 and 5, the first distance h1 is the distance between the center a of both eyes of the target user and the center point B of the mobile terminal; the second distance h2 is the vertical distance between the center of both eyes A and the target axis X, the center point B is located on the target axis X, and the target axis X is parallel to the body plane S of the target user and is perpendicular to the height direction P of the target user; the third distance h3 is the vertical distance between the center point B and the line connecting the second distances h 2. Wherein, the center a of the two eyes refers to the midpoint position of the connecting line between the left eye and the right eye of the target user.
Under the condition that the sight line of the target user does not deviate in the left-right direction, the sight line of the target user is perpendicular to the target axis X, in this case, the intersection point of the sight line of the target user and the target axis X is a target point C, and the connecting line between the binocular center A of the target user and the target point C is a second connecting line. And when the mobile terminal is placed in the initial placing posture and correspondingly the sight line of the target user deviates in the left-right direction, the connecting line between the center A of the eyes of the target user and the center point B of the mobile terminal is the first connecting line.
In an optional implementation manner, the mobile terminal may include a depth camera, a coordinate system with a self center position point as a coordinate origin is established in the depth camera, and after the mobile terminal collects data through the depth camera, the mobile terminal may perform coordinate conversion on the data, so as to convert the data into a unified spatial coordinate system, so as to perform subsequent processing.
In specific application, the mobile terminal can detect the center a of the eyes of the target user through the front depth camera, then can determine the distance between the center a of the eyes and the depth camera, and further can convert the distance into a unified space coordinate system, so that the first distance h1 is obtained.
Referring to fig. 4, first distance h1, second distance h2 and third distance h3 all lie in a first plane as shown in fig. 4, first distance h1, second distance h2 and third distance h3 may form a vertical triangle ABC on the first plane, where ∠ ACB is a right angle, and third distance h3 lies on target axis X. therefore, the mobile terminal may calculate second distance h2 and third distance h3 in a spatial coordinate system based on the spatial geometrical relationship between first distance h1, second distance h2 and third distance h3, and the corresponding coordinates of center a and center B of the eyes in the spatial coordinate system, respectively.
In practical application, when a target user is far away through a mobile terminal to perform a video call or a conference, compared with the distance between the target user and the mobile terminal, the distance between the center of the eyes of the target user and the mouth of the user is negligible, and therefore, in another optional implementation, the mobile terminal may further include a microphone array, so that when the target user makes a sound, the mobile terminal may detect the distance between the mouth of the target user and the microphone array through the microphone array, and further, the mobile terminal may convert the distance into a uniform spatial coordinate system, so as to obtain the first distance h 1. The mobile terminal may then calculate the second distance h2 and the third distance h3 in the spatial coordinate system according to the first distance h1, which is not particularly limited by the embodiment of the present invention.
In the embodiment of the present invention, since the first distance h1, the second distance h2, and the third distance h3 may form a vertical triangle on the first plane, the mobile terminal may determine an included angle between the first distance h1 and the second distance h2, that is, the first included angle α between the first connection line and the second connection line, and a plane where the first included angle α is located, that is, the first plane, according to at least two of the first distance h1, the second distance h2, and the third distance h 3.
Specifically, this step may be realized by any one of the following substeps including:
substep 1, calculating a first ratio of the second distance h2 to the first distance h1, and determining a first included angle α between the first connection line and the second connection line based on an inverse cosine value of the first ratio.
The implementation procedure of the above sub-step 1 can be represented by the formula α arccos (h2/h 1).
Substep 2 calculating a second ratio of the third distance h3 to the first distance h1 and determining a first angle α between the first and second links based on the arcsine value of the second ratio.
The implementation procedure of the above sub-step 2 can be expressed by the formula α ═ arcsin (h3/h 1).
Substep 3 calculating a third ratio of the third distance h3 to the second distance h2 and determining a first angle α between the first and second links based on the arctangent of the third ratio.
The implementation procedure of the above sub-step 3 can be expressed by the formula α ═ arctan (h3/h 2).
And step 203, acquiring the fourth distance, the fifth distance and the user height of the target user.
Wherein, as shown in fig. 3, the fourth distance h4 is the distance between the vertex D and the center point B of the target user; the fifth distance h5 is the distance between the target user's sole E and the center point B; the user height h6 is the distance between the top of the head D of the target user and the sole E of the target user.
In an alternative implementation, the mobile terminal may include an ultrasound module that may be used to emit ultrasound signals in a particular frequency band, such as below 24kHz (kilohertz). Generally, the frequency of the external radiation in the mobile terminal is 48kHz, so that the ultrasonic module emits an ultrasonic signal without affecting the normal external radiation of the mobile terminal. Correspondingly, the mobile terminal can transmit ultrasonic signals to the target user through the ultrasonic module, the ultrasonic signals have a certain radiation range, the signal part of the target user can be reflected back to the mobile terminal, and then the mobile terminal can determine the height h6 of the target user according to the reflected ultrasonic signals.
Of course, alternatively, the mobile terminal may detect the user height h6 of the target user through the depth camera. Alternatively, the height h6 of the user can be detected by some infrared signals emitted by infrared modules, and the detection principle is similar to that of the ultrasonic module, which is not described in detail in the embodiments of the present invention.
Since the user height h6 is the distance between the top D of the head of the target user and the sole E of the target user, when the mobile terminal detects the user height h6, the positions of the top D and the sole E of the target user can be located, and the fourth distance h4 between the top D and the center point B of the target user and the fifth distance h5 between the sole E and the center point B of the target user can be determined.
And step 204, determining a second included angle between the third connecting line and the fourth connecting line according to the fourth distance, the fifth distance and the height of the user.
Referring to fig. 5, a connection line between the vertex D of the target user and the center point B of the mobile terminal is a third connection line, a connection line between the sole E of the target user and the center point B of the mobile terminal is a fourth connection line, and the fourth distance h4, the fifth distance h5 and the user height h6 are located on a second plane, fig. 5 also illustrates a first plane PM1, and similarly, fig. 4 also illustrates a second plane pm2. as shown in fig. 5, the fourth distance h4, the fifth distance h5 and the user height h6 may form a triangle bde on the second plane, so the mobile terminal may calculate an included angle between the fourth distance h4 and the user height h6 in a spatial coordinate system, that is, the second plane between the third connection line and the fourth connection line β, and the second plane where the second connection line β is located, based on the fourth distance h4, the fifth distance h5 and the user height h 6.
Specifically, the step can be realized by calculating the square of a fourth distance h4, the square of a user height h6 and the square of a fifth distance h5, adding the square of the fourth distance h4 to the square of the user height h6 to obtain a first added value, calculating the difference between the first added value and the square of the fifth distance h5 to obtain a first difference, calculating the 2-fold product of the fourth distance h4 and the user height h6 to obtain a first product, calculating a fourth ratio of the first difference to the first product, and determining a second included angle β between a third connecting line and a fourth connecting line based on the inverse remainder of the fourth ratio.
In the embodiment of the present invention, after the mobile terminal determines the first included angle α, it may be determined whether the first included angle α is within a first preset angle range, and if the first included angle α is not within the first preset angle range, the mobile terminal may output first prompt information to prompt the target user to adjust the placement posture of the mobile terminal along a plane where the first included angle is located, that is, the first plane.
In a specific application, the first predetermined angle range may be [0,30] degree, [0,25] degree, and the like, for example, and the numerical value of the first predetermined angle range is not particularly limited in the embodiment of the present invention.
In the embodiment of the present invention, after the mobile terminal determines the second included angle β, it may be determined whether the second included angle β is within a second preset angle range, and if the second included angle β is not within the second preset angle range, the mobile terminal may output second prompt information to prompt the target user to adjust the placement posture of the mobile terminal along a plane where the second included angle is located, that is, the second plane.
In a specific application, the second preset angle range may be, for example, [60,90] degree, [60,105] degree, and the like, and the embodiment of the present invention does not specifically limit the numerical value of the second preset angle range.
In addition, in practical application, the mobile terminal may output the first prompt information and the second prompt information by playing the prompt voice, displaying the prompt box, and the like, which is not specifically limited in this embodiment of the present invention.
When the mobile terminal is applied specifically, the mobile terminal can detect a first included angle between the first connecting line and the second connecting line and a second included angle between the third connecting line and the fourth connecting line in real time. When the first included angle is detected to be within the first preset angle range and the second included angle is detected to be within the second preset angle range, the mobile terminal can enhance the sound within the position range where the target user is located currently and can reduce the noise of the sound outside the position range, so that the target user can hear the voice played by the mobile terminal more clearly at the current position, and the audio-visual effect of the mobile terminal is improved.
In the embodiment of the present invention, the mobile terminal may first determine a first included angle between the first connection line and the second connection line according to at least two of the first distance, the second distance, and the third distance, and then may determine a second included angle between the third connection line and the fourth connection line according to the fourth distance, the fifth distance, and the user height of the target user, where a plane where the first included angle is located is not parallel to a plane where the second included angle is located. And then when the first included angle is not within the first preset angle range, the mobile terminal can output first prompt information for prompting a target user to adjust the placing posture of the mobile terminal along the plane where the first included angle is located, and when the second included angle is not within the second preset angle range, the mobile terminal can output second prompt information for prompting the target user to adjust the placing posture of the mobile terminal along the plane where the second angle is located. In the embodiment of the invention, the mobile terminal can measure and calculate the offset angles of the sight line of the target user on the plane where the first included angle is located and the plane where the second included angle is located respectively, namely the first included angle and the second included angle, and then when the first included angle and the second included angle are not in the corresponding preset angle range, the mobile terminal can output corresponding prompt information to prompt the target user to adjust the placing posture of the mobile terminal on two non-parallel plane dimensions, so that the viewing experience can be more comfortable, and the viewing effect of the picture is better.
EXAMPLE III
Referring to fig. 6, a block diagram of a mobile terminal 600 according to a third embodiment of the present invention is shown, which may specifically include:
a first determining module 601, configured to determine a first included angle between a first connection line and a second connection line; the center of the eyes of the target user and the center point of the mobile terminal are both located on the first connecting line, the center of the eyes and the target point are both located on the second connecting line, the target point is the intersection point of the sight of the target user and the target axis under the condition that the sight of the target user is perpendicular to the target axis, the center point is located on the target axis, and the target axis is parallel to the body plane of the target user and perpendicular to the height direction of the target user;
a second determining module 602, configured to determine a second included angle between the third connection line and the fourth connection line; the top of the head and the central point of the target user are both positioned on the third connecting line, and the sole and the central point of the target user are both positioned on the fourth connecting line;
a first output module 603, configured to output a first prompt message when the first included angle is not within a first preset angle range; the first prompt information is used for prompting the target user to adjust the placing posture of the mobile terminal along the plane of the first included angle;
a second output module 604, configured to output a second prompt message when the second included angle is not within a second preset angle range; and the second prompt information is used for prompting the target user to adjust the placing posture of the mobile terminal along the plane of the second included angle.
Optionally, referring to fig. 7, the first determining module 601 includes:
a first obtaining submodule 6011, configured to obtain at least two of the first distance, the second distance, and the third distance;
a first determining submodule 6012, configured to determine, according to at least two of the first distance, the second distance, and the third distance, a first included angle between the first connection line and the second connection line;
wherein the first distance is a distance between the center of the eyes and the center point; the second distance is a perpendicular distance between the center of the eyes and the target axis; the third distance is a vertical distance between the central point and a connecting line of the second distance.
Alternatively, referring to fig. 8, the first determining submodule 6012 includes any one of the following units:
a first calculating unit 60121, configured to calculate a first ratio of the second distance to the first distance; determining a first included angle between the first connecting line and the second connecting line based on the inverse cosine value of the first ratio;
a second calculation unit 60122 for calculating a second ratio of the third distance to the first distance; determining a first included angle between the first connecting line and the second connecting line based on the arcsine value of the second ratio;
a third calculation unit 60123 for calculating a third ratio of the third distance to the second distance; and determining a first included angle between the first connecting line and the second connecting line based on the arctangent value of the third ratio.
Optionally, referring to fig. 7, the second determining module 602 includes:
a second obtaining submodule 6021, configured to obtain a fourth distance, a fifth distance, and a user height of the target user;
the second determining submodule 6022 is configured to determine a second included angle between the third connecting line and the fourth connecting line according to the fourth distance, the fifth distance and the height of the user;
wherein the fourth distance is a distance between the top of the head of the target user and the center point; the fifth distance is a distance between a sole of the target user and the center point.
Optionally, referring to fig. 9, the second determination submodule 6022 includes:
a fourth calculation unit 60221 for calculating a square of the fourth distance, a square of the height of the user, and a square of the fifth distance; adding the square of the fourth distance to the square of the height of the user to obtain a first addition value; calculating a difference between the first addition value and the square of the fifth distance to obtain a first difference;
a fifth calculating unit 60222, configured to calculate a product of the fourth distance and 2 times the height of the user, so as to obtain a first product;
a sixth calculating unit 60223 for calculating a fourth ratio of the first difference to the first product;
a determining unit 60224, configured to determine a second angle between the third line and the fourth line based on the inverse cosine value of the fourth ratio.
The mobile terminal provided in the embodiment of the present invention can implement each process implemented by the mobile terminal in the method embodiments of fig. 1 and fig. 2, and is not described herein again to avoid repetition.
In the embodiment of the present invention, the mobile terminal may first determine, by the first determining module, a first included angle between the first connection line and the second connection line, and determine, by the second determining module, a second included angle between the third connection line and the fourth connection line. The center of the two eyes of the target user and the center point of the mobile terminal are both positioned on the first connecting line; the center of the eyes and the target point are both positioned on the second connecting line, the target point is the intersection point of the sight of the target user and the target axis under the condition of being vertical to the target axis, the center point is positioned on the target axis, and the target axis is parallel to the body plane of the target user and is vertical to the height direction of the target user; the vertex and the center point of the target user are both positioned on the third connecting line; the sole and the central point of the target user are both positioned on the fourth connecting line. That is, the plane of the first included angle is not parallel to the plane of the second included angle. And when the first included angle is not within the first preset angle range, the mobile terminal can output first prompt information through the first output module for prompting a target user to adjust the placing posture of the mobile terminal along the plane where the first included angle is located, and when the second included angle is not within the second preset angle range, the mobile terminal can output second prompt information through the second output module for prompting the target user to adjust the placing posture of the mobile terminal along the plane where the second included angle is located. In the embodiment of the invention, the mobile terminal can measure and calculate the offset angles of the sight of the target user on two non-parallel plane dimensions, namely the first included angle and the second included angle, and further when the first included angle and the second included angle are not in the corresponding preset angle range, the mobile terminal can output corresponding prompt information to prompt the target user to adjust the placing posture of the mobile terminal on the two non-parallel plane dimensions, so that the viewing experience is more comfortable, and the viewing effect of the picture is better.
Example four
Figure 10 is a schematic diagram of the hardware architecture of a mobile terminal implementing various embodiments of the present invention,
the mobile terminal 1000 includes, but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, a processor 1010, and a power supply 1011. Those skilled in the art will appreciate that the mobile terminal architecture illustrated in fig. 10 is not intended to be limiting of mobile terminals, and that a mobile terminal may include more or fewer components than those illustrated, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the mobile terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
The processor 1010 is configured to determine a first included angle between the first connection line and the second connection line; the center of the eyes of the target user and the center point of the mobile terminal are both located on the first connecting line, the center of the eyes and the target point are both located on the second connecting line, the target point is the intersection point of the sight of the target user and the target axis under the condition that the sight of the target user is perpendicular to the target axis, the center point is located on the target axis, and the target axis is parallel to the body plane of the target user and perpendicular to the height direction of the target user; determining a second included angle between the third connecting line and the fourth connecting line; the top of the head and the central point of the target user are both positioned on the third connecting line, and the sole and the central point of the target user are both positioned on the fourth connecting line; when the first included angle is not within a first preset angle range, outputting first prompt information; the first prompt information is used for prompting the target user to adjust the placing posture of the mobile terminal along the plane of the first included angle; when the second included angle is not within a second preset angle range, outputting second prompt information; and the second prompt information is used for prompting the target user to adjust the placing posture of the mobile terminal along the plane of the second included angle.
In the embodiment of the present invention, the mobile terminal may first determine a first included angle between the first connection line and the second connection line, and a second included angle between the third connection line and the fourth connection line. The center of the two eyes of the target user and the center point of the mobile terminal are both positioned on the first connecting line; the center of the eyes and the target point are both positioned on the second connecting line, the target point is the intersection point of the sight of the target user and the target axis under the condition of being vertical to the target axis, the center point is positioned on the target axis, and the target axis is parallel to the body plane of the target user and is vertical to the height direction of the target user; the vertex and the center point of the target user are both positioned on the third connecting line; the sole and the central point of the target user are both positioned on the fourth connecting line. That is, the plane of the first included angle is not parallel to the plane of the second included angle. And then when the first included angle is not within the first preset angle range, the mobile terminal can output first prompt information for prompting a target user to adjust the placing posture of the mobile terminal along the plane where the first included angle is located, and when the second included angle is not within the second preset angle range, the mobile terminal can output second prompt information for prompting the target user to adjust the placing posture of the mobile terminal along the plane where the second included angle is located. In the embodiment of the invention, the mobile terminal can measure and calculate the offset angles of the sight of the target user on two non-parallel plane dimensions, namely the first included angle and the second included angle, and further when the first included angle and the second included angle are not in the corresponding preset angle range, the mobile terminal can output corresponding prompt information to prompt the target user to adjust the placing posture of the mobile terminal on the two non-parallel plane dimensions, so that the viewing experience is more comfortable, and the viewing effect of the picture is better.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 1001 may be used for receiving and sending signals during a message transmission or a call, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 1010; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 1001 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. Further, the radio frequency unit 1001 may also communicate with a network and other devices through a wireless communication system.
The mobile terminal provides the user with wireless broadband internet access through the network module 1002, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.
The audio output unit 1003 may convert audio data received by the radio frequency unit 1001 or the network module 1002 or stored in the memory 1009 into an audio signal and output as sound. Also, the audio output unit 1003 may also provide audio output related to a specific function performed by the mobile terminal 1000 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 1003 includes a speaker, a buzzer, a receiver, and the like.
The input unit 1004 is used to receive an audio or video signal. The input Unit 1004 may include a Graphics Processing Unit (GPU) 10041 and a microphone 10042, the Graphics processor 10041 Processing image data of still pictures or video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 1006. The image frames processed by the graphic processor 10041 may be stored in the memory 1009 (or other storage medium) or transmitted via the radio frequency unit 1001 or the network module 1002. The microphone 10042 can receive sound and can process such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 1001 in case of a phone call mode.
The mobile terminal 1000 can also include at least one sensor 1005, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 10061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 10061 and/or the backlight when the mobile terminal 1000 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of the mobile terminal (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), and vibration identification related functions (such as pedometer, tapping); the sensors 1005 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which will not be described in detail herein.
The display unit 1006 is used to display information input by the user or information provided to the user. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 1007 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 1007 includes a touch panel 10071 and other input devices 10072. The touch panel 10071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 10071 (e.g., operations by a user on or near the touch panel 10071 using a finger, a stylus, or any other suitable object or attachment). The touch panel 10071 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 1010, and receives and executes commands sent by the processor 1010. In addition, the touch panel 10071 may be implemented by various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 10071, the user input unit 1007 can include other input devices 10072. Specifically, the other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a track ball, a mouse, and a joystick, which are not described herein again.
Further, the touch panel 10071 can be overlaid on the display panel 10061, and when the touch panel 10071 detects a touch operation thereon or nearby, the touch operation is transmitted to the processor 1010 to determine the type of the touch event, and then the processor 1010 provides a corresponding visual output on the display panel 10061 according to the type of the touch event. Although in fig. 10, the touch panel 10071 and the display panel 10061 are two independent components for implementing the input and output functions of the mobile terminal, in some embodiments, the touch panel 10071 and the display panel 10061 may be integrated to implement the input and output functions of the mobile terminal, which is not limited herein.
The interface unit 1008 is an interface through which an external device is connected to the mobile terminal 1000. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 1008 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 1000 or may be used to transmit data between the mobile terminal 1000 and external devices.
The memory 1009 may be used to store software programs as well as various data. The memory 1009 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, and the like), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 1009 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 1010 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 1009 and calling data stored in the memory 1009, thereby integrally monitoring the mobile terminal. Processor 1010 may include one or more processing units; preferably, the processor 1010 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 1010.
The mobile terminal 1000 may also include a power supply 1011 (e.g., a battery) for powering the various components, and the power supply 1011 may be logically coupled to the processor 1010 via a power management system that may be configured to manage charging, discharging, and power consumption.
In addition, the mobile terminal 1000 includes some functional modules that are not shown, and are not described in detail herein.
Preferably, an embodiment of the present invention further provides a mobile terminal, including a processor 1010, a memory 1009, and a computer program stored in the memory 1009 and capable of running on the processor 1010, where the computer program is executed by the processor 1010 to implement each process of the above-mentioned prompting method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the above-mentioned prompting method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (12)
1. A method for prompting, the method comprising:
determining a first included angle between the first connecting line and the second connecting line; the center of the eyes of the target user and the center point of the mobile terminal are both located on the first connecting line, the center of the eyes and the target point are both located on the second connecting line, the target point is the intersection point of the sight of the target user and the target axis under the condition that the sight of the target user is perpendicular to the target axis, the center point is located on the target axis, and the target axis is parallel to the body plane of the target user and perpendicular to the height direction of the target user;
determining a second included angle between the third connecting line and the fourth connecting line; the top of the head and the central point of the target user are both positioned on the third connecting line, and the sole and the central point of the target user are both positioned on the fourth connecting line;
when the first included angle is not within a first preset angle range, outputting first prompt information; the first prompt information is used for prompting the target user to adjust the placing posture of the mobile terminal along the plane of the first included angle;
when the second included angle is not within a second preset angle range, outputting second prompt information; and the second prompt information is used for prompting the target user to adjust the placing posture of the mobile terminal along the plane of the second included angle.
2. The method of claim 1, wherein the step of determining the first angle between the first line and the second line comprises:
acquiring at least two of the first distance, the second distance and the third distance;
determining a first included angle between the first connecting line and the second connecting line according to at least two of the first distance, the second distance and the third distance;
wherein the first distance is a distance between the center of the eyes and the center point; the second distance is a perpendicular distance between the center of the eyes and the target axis; the third distance is a vertical distance between the central point and a connecting line of the second distance.
3. A method according to claim 2, wherein the step of determining a first angle between a first line and a second line based on at least two of the first distance, the second distance and the third distance comprises any one of the following sub-steps:
calculating a first ratio of the second distance to the first distance; determining a first included angle between the first connecting line and the second connecting line based on the inverse cosine value of the first ratio;
calculating a second ratio of the third distance to the first distance; determining a first included angle between the first connecting line and the second connecting line based on the arcsine value of the second ratio;
calculating a third ratio of the third distance to the second distance; and determining a first included angle between the first connecting line and the second connecting line based on the arctangent value of the third ratio.
4. The method of claim 1, wherein the step of determining a second angle between the third line and the fourth line comprises:
acquiring a fourth distance, a fifth distance and the user height of the target user;
determining a second included angle between the third connecting line and the fourth connecting line according to the fourth distance, the fifth distance and the height of the user;
wherein the fourth distance is a distance between the top of the head of the target user and the center point; the fifth distance is a distance between a sole of the target user and the center point.
5. The method of claim 4, wherein said step of determining a second angle between a third line and a fourth line based on said fourth distance, said fifth distance, and said user height comprises:
calculating a square of the fourth distance, a square of the user's height, and a square of the fifth distance;
adding the square of the fourth distance to the square of the height of the user to obtain a first addition value;
calculating a difference between the first addition value and the square of the fifth distance to obtain a first difference;
calculating a product of the fourth distance and 2 times of the height of the user to obtain a first product;
calculating a fourth ratio of the first difference to the first product;
and determining a second included angle between the third connecting line and the fourth connecting line based on the inverse cosine value of the fourth ratio.
6. A mobile terminal, characterized in that the mobile terminal comprises:
the first determining module is used for determining a first included angle between the first connecting line and the second connecting line; the center of the eyes of the target user and the center point of the mobile terminal are both located on the first connecting line, the center of the eyes and the target point are both located on the second connecting line, the target point is the intersection point of the sight of the target user and the target axis under the condition that the sight of the target user is perpendicular to the target axis, the center point is located on the target axis, and the target axis is parallel to the body plane of the target user and perpendicular to the height direction of the target user;
the second determining module is used for determining a second included angle between the third connecting line and the fourth connecting line; the top of the head and the central point of the target user are both positioned on the third connecting line, and the sole and the central point of the target user are both positioned on the fourth connecting line;
the first output module is used for outputting first prompt information when the first included angle is not within a first preset angle range; the first prompt information is used for prompting the target user to adjust the placing posture of the mobile terminal along the plane of the first included angle;
the second output module is used for outputting second prompt information when the second included angle is not within a second preset angle range; and the second prompt information is used for prompting the target user to adjust the placing posture of the mobile terminal along the plane of the second included angle.
7. The mobile terminal of claim 6, wherein the first determining module comprises:
the first obtaining submodule is used for obtaining at least two of the first distance, the second distance and the third distance;
the first determining submodule is used for determining a first included angle between a first connecting line and a second connecting line according to at least two of the first distance, the second distance and the third distance;
wherein the first distance is a distance between the center of the eyes and the center point; the second distance is a perpendicular distance between the center of the eyes and the target axis; the third distance is a vertical distance between the central point and a connecting line of the second distance.
8. The mobile terminal of claim 7, wherein the first determining submodule comprises any one of the following:
a first calculation unit configured to calculate a first ratio of the second distance to the first distance; determining a first included angle between the first connecting line and the second connecting line based on the inverse cosine value of the first ratio;
a second calculating unit, configured to calculate a second ratio of the third distance to the first distance; determining a first included angle between the first connecting line and the second connecting line based on the arcsine value of the second ratio;
a third calculating unit, configured to calculate a third ratio of the third distance to the second distance; and determining a first included angle between the first connecting line and the second connecting line based on the arctangent value of the third ratio.
9. The mobile terminal of claim 6, wherein the second determining module comprises:
the second obtaining submodule is used for obtaining a fourth distance, a fifth distance and the user height of the target user;
the second determining submodule is used for determining a second included angle between the third connecting line and the fourth connecting line according to the fourth distance, the fifth distance and the height of the user;
wherein the fourth distance is a distance between the top of the head of the target user and the center point; the fifth distance is a distance between a sole of the target user and the center point.
10. The mobile terminal of claim 9, wherein the second determining submodule comprises:
a fourth calculation unit configured to calculate a square of the fourth distance, a square of the user height, and a square of the fifth distance; adding the square of the fourth distance to the square of the height of the user to obtain a first addition value; calculating a difference between the first addition value and the square of the fifth distance to obtain a first difference;
a fifth calculating unit, configured to calculate a product of the fourth distance and 2 times the height of the user, so as to obtain a first product;
a sixth calculation unit configured to calculate a fourth ratio of the first difference to the first product;
and the determining unit is used for determining a second included angle between the third connecting line and the fourth connecting line based on the inverse cosine value of the fourth ratio.
11. A mobile terminal, characterized in that it comprises a processor, a memory and a computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the prompting method according to any one of claims 1 to 5.
12. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the prompting method according to any one of claims 1 to 5.
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