CN107782280B - Film thickness detection method and mobile terminal - Google Patents

Film thickness detection method and mobile terminal Download PDF

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Publication number
CN107782280B
CN107782280B CN201710983845.0A CN201710983845A CN107782280B CN 107782280 B CN107782280 B CN 107782280B CN 201710983845 A CN201710983845 A CN 201710983845A CN 107782280 B CN107782280 B CN 107782280B
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CN
China
Prior art keywords
mobile terminal
film
preset
thickness
energy
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CN201710983845.0A
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Chinese (zh)
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CN107782280A (en
Inventor
张潮红
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维沃移动通信有限公司
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Priority to CN201710983845.0A priority Critical patent/CN107782280B/en
Publication of CN107782280A publication Critical patent/CN107782280A/en
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Publication of CN107782280B publication Critical patent/CN107782280B/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C3/00Measuring distances in line of sight; Optical rangefinders
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical means
    • G01B11/02Measuring arrangements characterised by the use of optical means for measuring length, width or thickness
    • G01B11/06Measuring arrangements characterised by the use of optical means for measuring length, width or thickness for measuring thickness, e.g. of sheet material
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS
    • G01V3/00Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation

Abstract

The invention discloses a method for detecting the film thickness of a mobile terminal and the mobile terminal, wherein the method comprises the following steps: detecting a current capacitance value of a screen of the mobile terminal; judging whether a film is pasted on a screen of the mobile terminal or not according to the current capacitance value and a preset capacitance value, and judging whether the film influences the infrared distance measuring function of the mobile terminal or not when the film is pasted on the screen of the mobile terminal; when the film is used for influencing the infrared distance measurement function of the mobile terminal, determining the thickness of the film; when the thickness of the film is larger than a first preset thickness threshold and smaller than a second preset thickness threshold, the emission energy of the infrared sensor is improved, so that the influence of the film on the infrared distance measurement function of the mobile terminal is reduced; when the thickness of the film is larger than or equal to the second preset thickness threshold value, the user is prompted that the thickness of the film is not appropriate and the film needs to be replaced, and the second preset thickness threshold value is larger than the first preset thickness threshold value. The method of the embodiment of the invention can reduce or eliminate the influence of the film on the infrared distance measurement function of the mobile terminal.

Description

Film thickness detection method and mobile terminal

Technical Field

The invention relates to the field of terminals, in particular to a method for detecting the thickness of a film and a mobile terminal.

Background

At present, most of smart phones have a distance detection function, and the most common distance detection method is to perform light sensing and distance detection by using infrared. Hide infra-red transmitter and receiver in the screen below of smart mobile phone, use infra-red transmitter transmission infrared ray of certain energy, see through behind the screen glass apron during through external reflection to infra-red receiver, judge the distance between smart mobile phone and the external object according to the time difference of transmission and receipt.

Most users prefer to protect the mobile phone through the adhesive film, but the shape and the thickness of the adhesive film of the mobile phone are different, if the non-standard adhesive film is used, the infrared hole on the mobile phone can be covered, so that the infrared ray energy is attenuated, the energy of infrared rays received by an infrared receiver in the mobile phone is very small, and the infrared distance measurement function of the mobile phone is influenced.

Disclosure of Invention

The embodiment of the invention provides a method for detecting the thickness of a film, which aims to solve the problem that the film influences the infrared distance measurement function of a mobile terminal.

In order to solve the technical problem, the invention is realized as follows:

in a first aspect, a method for detecting the thickness of a film is provided, which includes:

detecting a current capacitance value of a screen of the mobile terminal;

judging whether a film is pasted on a screen of the mobile terminal or not according to the current capacitance value and a preset capacitance value;

when the fact that a film is pasted on a screen of the mobile terminal is determined, whether the film influences an infrared distance measuring function of the mobile terminal is judged;

when the film is used for influencing the infrared distance measurement function of the mobile terminal, determining the thickness of the film;

when the thickness of the film is larger than a first preset thickness threshold and smaller than a second preset thickness threshold, improving the emission energy of an infrared sensor so as to reduce the influence of the film on the infrared distance measurement function of the mobile terminal;

when the thickness of the adhesive film is larger than or equal to the second preset thickness threshold value, prompting a user that the thickness of the adhesive film is not appropriate and the adhesive film needs to be replaced, wherein the second preset thickness threshold value is larger than the first preset thickness threshold value.

In a second aspect, a mobile terminal is provided, which includes:

the detection unit is used for detecting the current capacitance value of the screen of the mobile terminal;

the first processing unit is used for judging whether a film is pasted on a screen of the mobile terminal according to the current capacitance value and a preset capacitance value;

the first processing unit is further used for judging whether the sticking film affects the infrared distance measuring function of the mobile terminal when the sticking film is confirmed to be stuck on the screen of the mobile terminal;

the second processing unit is used for determining the thickness of the adhesive film when the adhesive film influences the infrared distance measuring function of the mobile terminal;

the second processing unit is further configured to:

when the thickness of the film is larger than a first preset thickness threshold and smaller than a second preset thickness threshold, improving the emission energy of an infrared sensing unit so as to reduce the influence of the film on the infrared distance measurement function of the mobile terminal;

when the thickness of the adhesive film is larger than or equal to the second preset thickness threshold value, prompting a user that the thickness of the adhesive film is not appropriate and the adhesive film needs to be replaced, wherein the second preset thickness threshold value is larger than the first preset thickness threshold value.

In a third aspect, a mobile terminal is provided, which includes: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method for detecting a thickness of a patch according to the first aspect.

In a fourth aspect, a computer-readable medium is provided, on which a computer program is stored, which computer program, when being executed by a processor, realizes the steps of the method for detecting a thickness of a patch according to the first aspect.

In the embodiment of the invention, whether a film is pasted on the screen of the mobile terminal is judged according to the current capacitance value and the preset capacitance value of the screen of the mobile terminal, whether the film influences the infrared distance measuring function of the mobile terminal is determined when the film is pasted on the screen of the mobile terminal is determined, the thickness of the film is determined when the film influences the infrared distance measuring function of the mobile terminal, the emission energy of the infrared sensor is improved when the thickness of the film is larger than a first preset thickness threshold value and smaller than a second preset thickness threshold value, and a user is prompted that the thickness of the film is not appropriate and the film needs to be replaced when the thickness of the film is larger than or equal to the second preset thickness threshold value. When the film is used for influencing the infrared distance measuring function of the mobile terminal, corresponding operation is executed according to the thickness of the film, and the influence of the film on the infrared distance measuring function of the mobile terminal is reduced or eliminated.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of a propagation path of light in a case where there is no film and there is a film on a screen of a mobile terminal.

Fig. 2 is a schematic flow chart of a method for detecting the thickness of a patch according to an embodiment of the present invention.

Fig. 3 is a schematic flow chart of a method for detecting the thickness of a film according to an embodiment of the present invention.

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

Fig. 5 is a schematic structural diagram of a mobile terminal according to another embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are 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.

Fig. 1 shows a schematic view of a propagation path of light in a case where there is no film and there is a film on a screen of a mobile terminal. It should be noted that the infrared transmitter and the infrared receiver in fig. 1 are two different units, which are merely an example. The infrared transmitter and infrared receiver of fig. 1 may be integrated into a unit called an infrared sensor.

As shown in fig. 1, when there is no film attached to the screen of the mobile terminal, a portion of infrared light emitted from the infrared emitter, which passes through the screen of the mobile terminal, is incident on an external object, and reflected light reflected by the external object is received by the infrared receiver. When the screen of the mobile terminal is provided with the film, the infrared light emitted by the infrared emitter penetrates through the screen of the mobile terminal and the part of the film to be incident on an external object, and the reflected light reflected by the external object is received by the infrared receiver. It will be appreciated that the presence of the patch will result in a reduction in the energy of the reflected light reflected to the infrared receiver, which if the energy of the reflected light differs from or is lower than the energy of the ambient light, will result in an inability to detect the distance.

In order to solve the technical problem, an embodiment of the present invention provides a method for detecting a thickness of a film, which can reduce or eliminate an influence of the film on an infrared distance measurement function when the film affects the infrared distance measurement function of a mobile terminal, and ensure normal implementation of the infrared distance measurement.

Fig. 2 is a schematic flow chart of a method for detecting the thickness of a film according to an embodiment of the present invention. As shown in fig. 2, the method 100 includes:

and S110, detecting the current capacitance value of the screen of the mobile terminal.

Generally, the film of the screen of the mobile terminal has conductivity, and if the film is attached on the screen of the mobile terminal, the capacitance value of the screen of the mobile terminal will change, for example, increase.

And S120, judging whether a film is pasted on the screen of the mobile terminal or not according to the current capacitance value and a preset capacitance value.

Optionally, in some embodiments, the preset capacitance value is a capacitance value of a screen of the mobile terminal when no film is attached to the screen. The preset capacitance value may be preset inside the mobile terminal when the mobile terminal leaves a factory. Or the preset capacitance value may be obtained by controlling the mobile terminal to detect the capacitance value of the screen when the user determines that the screen of the mobile terminal is not pasted with the film.

Specifically, in some embodiments, if the difference between the current capacitance value and the preset capacitance value is greater than or equal to the preset capacitance difference, it is determined that the film is attached to the screen of the mobile terminal. And if the difference value between the current capacitance value and the preset capacitance value is smaller than the preset capacitance difference value, determining that no film is pasted on the screen of the mobile terminal.

S130, when the fact that the film is pasted on the screen of the mobile terminal is determined, whether the film influences the infrared distance measuring function of the mobile terminal is judged.

Optionally, in some embodiments, the mobile terminal transmits a first infrared light with energy being preset transmission energy through an infrared sensor, receives a first reflected light of the first infrared light through the infrared sensor, determines the energy of the first reflected light, and determines whether the film is applied to affect the infrared distance measuring function of the mobile terminal according to a difference between the energy of the first reflected light and the preset received energy and a preset energy difference, wherein the preset received energy is the energy of a second reflected light of a second infrared light which is transmitted with the preset transmission energy when the film is not applied to a screen of the mobile terminal.

Specifically, in some embodiments, if the difference between the energy of the first reflected light and the preset received energy is greater than or equal to the preset energy difference, it is determined that the film affects the infrared distance measurement function of the mobile terminal, otherwise, it is determined that the film does not affect the infrared distance measurement function of the mobile terminal.

In other words, the infrared sensor of the mobile terminal emits infrared light with preset emission energy, reflected light is received through the infrared sensor, if the difference value between the energy of the reflected light received by the infrared sensor and the preset emission energy is larger than or equal to an error threshold value, it is determined that the film is applied to affect the infrared distance measuring function of the mobile terminal, and otherwise, it is determined that the film is not applied to affect the infrared distance measuring function of the mobile terminal.

Specifically, in some embodiments, the energy of the infrared light in the ambient light is acquired by the infrared sensor before the first infrared light having the energy that is the preset emission energy is emitted by the infrared sensor. When determining the energy of the first reflected light, determining the energy of the light received by the infrared sensor, wherein the light received by the infrared sensor comprises the first reflected light, and determining the difference value of the energy of the light received by the infrared sensor and the energy of the infrared light in the environment light as the energy of the first reflected light.

That is, before the infrared sensor emits infrared light at a factory preset emission energy, the energy of infrared light in external environment light is acquired, and after the energy of light received by the infrared receiver is determined, the difference between the energy of light received by the infrared receiver and the energy of infrared light in the environment light is determined as the energy of reflected light of infrared light emitted by the infrared sensor.

Optionally, in some embodiments, the voice playing mode of the mobile terminal is set to the earpiece mode before the first infrared light with the energy being the preset emission energy is emitted by the infrared sensor.

S140, when the film is influenced by the infrared distance measuring function of the mobile terminal, determining the thickness of the film.

Alternatively, in S140, if the film does not affect the infrared ranging function of the mobile terminal, the thickness of the film does not need to be determined, and thus, the computational complexity of the mobile terminal due to the determination of the thickness of the film can be reduced.

Optionally, in some embodiments, the thickness of the patch is determined according to the energy of the first reflected light, the energy of the second reflected light, and the preset emission energy.

Specifically, in some embodiments, the propagation path of light shown in fig. 1 is taken as an example. Assuming that the energy of infrared rays emitted from the infrared emitter is a1, the energy of reflected light reflected from an external object is B1, and the energy of reflected light reflected from a screen of the mobile terminal is C1 when no film is attached to the screen of the mobile terminal, the energy of infrared rays received by the infrared receiver is B1+ C1. If the screen of the mobile terminal is provided with the film, the energy of infrared rays emitted by the infrared emitter is a2(a2 is equal to a1), the energy of reflected light reflected by an external object is B2, and the energy of reflected light reflected by the screen of the mobile terminal is C2(C2 is equal to C1), then the energy of infrared rays received by the infrared receiver is B2+ C2. And the energy difference of the reflected light received by the infrared receivers before and after the film sticking is B1+ C1-B2-C2-B1-B2, the transmittance eta of the film sticking can be calculated to be (B1-B2) u/A1, wherein u is an actually measured compensation coefficient. And the relationship between the transmittance of the adhesive film and the thickness of the adhesive film can be expressed as formula (1):

η=10-k*c*l(1)

wherein eta is the transmittance of the adhesive film, k is a constant, c is the concentration of the main light-transmitting substance in the adhesive film, and l is the thickness of the adhesive film. If the transmittance of the adhesive film has been calculated, the thickness of the adhesive film can be calculated according to the formula (1).

Or the thickness of the adhesive film can be further expressed as formula (2) from formula (1):

the thickness of the adhesive film can be directly calculated according to the energy difference of reflected light received by the infrared receivers before and after the adhesive film, the energy sum of infrared rays emitted by the infrared emitter, the actually measured compensation coefficient u, the constant k and the concentration c of main light-transmitting substances in the adhesive film.

Alternatively, in some embodiments, the measured compensation coefficient u may be calculated by repeatedly pasting a film with a known thickness on the screen of the mobile terminal for a plurality of times. Therefore, according to the formula (2), when l is known, the value of u can be calculated, when the same film is pasted for multiple times, the values of u can be calculated, the values of u are averaged to obtain the final value of u, and the final value of u is preset in the mobile terminal so that the mobile terminal can be used for determining the thickness of the pasted film subsequently.

S150, when the thickness of the film is larger than a first preset thickness threshold and smaller than a second preset thickness threshold, improving the emission energy of an infrared sensor so as to reduce the influence of the film on the infrared distance measurement function of the mobile terminal; when the thickness of the adhesive film is larger than or equal to the second preset thickness threshold value, prompting a user that the thickness of the adhesive film is not appropriate and the adhesive film needs to be replaced, wherein the second preset thickness threshold value is larger than the first preset thickness threshold value.

Optionally, in some embodiments, the transmission energy of the infrared sensor is increased according to a relationship between the thickness of the patch and the transmission energy, wherein the thicker the patch, the greater the transmission energy of the infrared sensor.

According to the method provided by the embodiment of the invention, when the fact that the sticking film is stuck on the screen of the mobile terminal and influences the infrared distance measuring function of the mobile terminal and the thickness of the sticking film meets a certain condition is determined, the emission energy of the infrared sensor can be adjusted according to the relation between the thickness of the sticking film and the emission energy. Therefore, the mobile terminal can be ensured to normally adopt infrared light to carry out distance detection.

Optionally, in some embodiments, the corresponding relationship between the thickness of the patch and the emission energy is preset inside the mobile terminal, and after the mobile terminal determines the thickness of the patch, the mobile terminal determines the emission energy of the infrared sensor according to the determined thickness of the patch and the stored relationship between the thickness of the patch and the emission energy.

Alternatively, in other embodiments, the propagation path of light shown in fig. 1 is taken as an example. Assuming that the energy of infrared rays emitted from the infrared emitter is a1, the energy of reflected light reflected from an external object is B1, and the energy of reflected light reflected from a screen of the mobile terminal is C1 when no film is attached to the screen of the mobile terminal, the energy of infrared rays received by the infrared receiver is B1+ C1. When the adhesive film is attached to the screen of the mobile terminal and the transmittance of the adhesive film is η, the actual emission energy of the infrared emitter is A3, and A3 can be represented by formula (3):

as can be seen from the above description, a1, B1, and C1 may be preset inside the mobile terminal when the mobile terminal is shipped from the factory. After the mobile terminal determines the thickness of the adhesive film, the actual emission energy A3 can be calculated according to formula (3), and the thicker the thickness, the larger the value of A3. Or in some embodiments, the actual emission energy A3 of the infrared emitter may be calculated according to formula (3) and a1, B1, C1 and u preset inside the mobile terminal, and the energy B2 of the reflected light reflected by the external object received by the infrared receiver when the film is attached.

According to the method provided by the embodiment of the invention, when the fact that the film is pasted on the screen of the mobile terminal and influences the infrared distance measuring function of the mobile terminal and the thickness of the film is larger than the preset thickness threshold value is determined, a user is prompted that the thickness of the film is not appropriate and the film needs to be replaced. Therefore, the situation that the mobile terminal cannot adopt infrared light to carry out distance detection due to the fact that the thickness of the pasting film is not appropriate can be avoided.

FIG. 3 is a method for detecting the thickness of a film according to an embodiment of the present invention. It should be noted that the method 200 shown in fig. 3 is only a specific example and does not limit the scope of the embodiments of the present invention. As shown in fig. 3, the method 200 includes:

s201, self-checking the capacitance value of the touch screen.

S202, judging whether the self-test capacitance value exceeds an error threshold value 1.

The method for determining whether the self-test capacitance value exceeds the error threshold 1 in S202 is the same as the method for determining the difference between the current capacitance value and the preset capacitance value in the method 100, and is not repeated here.

S203, if the self-checking capacitance value exceeds the error threshold value 1, the infrared transmitter transmits infrared light with preset energy A when the earphone mode is used.

Alternatively, if the self-test capacitance value does not exceed the error threshold value 1 in S202, it is considered that there is no film attached on the screen of the mobile terminal in S203, and the entire process is ended.

S204, determining the energy C of the reflected light of the infrared light received by the infrared receiver.

Specifically, in S203, before the infrared transmitter transmits the infrared light at the preset energy a, energy C1 of the infrared light in the ambient light is first acquired by the infrared receiver, and after the infrared transmitter transmits the infrared light at the preset energy a, energy of light received by the infrared receiver is C2, and energy C of reflected light of the infrared light received by the infrared receiver is C2-C1. It is understood that the value of C1 may be set in the mobile terminal in advance.

S205, it is determined whether the difference between the energy C and the preset received energy C0 exceeds the error threshold 2.

And S206, if the difference value of the energy C and the preset receiving energy C0 exceeds an error threshold value 2, calculating the thickness of the adhesive film.

Alternatively, in S205, if the difference between the energy C and the preset received energy C0 does not exceed the error threshold 2, it is determined in S206 that the infrared ranging function is not affected, and the whole process is ended.

It should be noted that the method for determining the thickness of the adhesive film in S206 is the same as the method for determining the thickness of the adhesive film in S120, and is not described herein again.

S207, determining whether the thickness of the adhesive film exceeds a thickness threshold value of 3.

And S208, if the thickness of the adhesive film does not exceed the thickness threshold value 3, adjusting the infrared emission energy according to the thickness of the adhesive film.

Alternatively, if it is determined in S207 that the thickness of the patch exceeds the thickness threshold 3, in S208, the user is prompted that the patch is not qualified and requires replacement.

The method for detecting the thickness of the adhesive film according to the embodiment of the present invention is described in detail above with reference to fig. 1 to 3, and the mobile terminal according to the embodiment of the present invention will be described in detail below with reference to fig. 4. As shown in fig. 4, the mobile terminal 40 includes:

a detecting unit 41, configured to detect a current capacitance value of a screen of the mobile terminal;

the first processing unit 42 is configured to determine whether a film is attached to a screen of the mobile terminal according to the current capacitance value and a preset capacitance value;

the first processing unit 42 is further configured to, when it is determined that a film is attached to the screen of the mobile terminal, determine whether the film affects an infrared distance measurement function of the mobile terminal;

the second processing unit 42 is configured to determine the thickness of the adhesive film when the adhesive film affects the infrared distance measurement function of the mobile terminal;

the second processing unit 42 is further configured to:

when the thickness of the film is larger than a first preset thickness threshold and smaller than a second preset thickness threshold, improving the emission energy of an infrared sensing unit so as to reduce the influence of the film on the infrared distance measurement function of the mobile terminal;

when the thickness of the adhesive film is larger than or equal to the second preset thickness threshold value, prompting a user that the thickness of the adhesive film is not appropriate and the adhesive film needs to be replaced, wherein the second preset thickness threshold value is larger than the first preset thickness threshold value.

According to the mobile terminal provided by the embodiment of the invention, when the film is pasted on the screen is determined according to the current capacitance value and the preset capacitance value of the screen, whether the film influences the infrared distance measurement function of the mobile terminal is determined, the thickness of the film is determined when the film influences the infrared distance measurement function of the mobile terminal, the emission energy of the infrared sensor is increased when the thickness of the film is larger than a first preset thickness threshold value and smaller than a second preset thickness threshold value, and the user is prompted that the thickness of the film is not appropriate and the film needs to be replaced when the thickness of the film is larger than or equal to the second preset thickness threshold value.

Optionally, as an embodiment, the first processing unit 42 is specifically configured to:

and if the difference value between the current capacitance value and the preset capacitance value is larger than or equal to the preset capacitance difference value, determining that a pad pasting is pasted on the screen of the mobile terminal.

And if the difference value between the current capacitance value and the preset capacitance value is smaller than the preset capacitance difference value, determining that no film is pasted on the screen of the mobile terminal.

Optionally, as an embodiment, the first processing unit 42 is specifically configured to:

emitting first infrared light with energy as preset emission energy through an infrared sensing unit;

receiving first reflected light of the first infrared light by the infrared sensing unit;

determining an energy of the first reflected light;

and determining whether the film is affected on the infrared distance measuring function of the mobile terminal according to the difference value between the energy of the first reflected light and a preset receiving energy and a preset energy difference value, wherein the preset receiving energy is the energy of second reflected light of second infrared light emitted by the preset emitting energy when no film is adhered on a screen of the mobile terminal.

Optionally, as an embodiment, the second processing unit 43 is further configured to:

and determining the thickness of the adhesive film according to the energy of the first reflected light, the energy of the second reflected light and the preset emission energy.

Optionally, as an embodiment, before the emitting, by the infrared sensing unit, the first infrared light with energy being preset sending energy, the first processing unit 42 is further configured to:

and setting the voice playing mode of the mobile terminal to be a receiver mode.

Optionally, as an embodiment, the second processing unit 43 is specifically configured to:

and improving the emission energy of the infrared sensing unit according to the relation between the thickness of the adhesive film and the emission energy, wherein the thicker the thickness of the adhesive film is, the larger the emission energy of the infrared sensing unit is.

The mobile terminal according to the embodiment of the present invention may refer to the flow corresponding to the method 100 of the embodiment of the present invention, and each unit/module and the other operations and/or functions in the mobile terminal are respectively for implementing the corresponding flow in the method 100, and are not described herein again for brevity.

Fig. 5 is a schematic diagram of a hardware structure of a mobile terminal implementing an embodiment of the present invention. As shown in fig. 5, the mobile terminal 500 includes, but is not limited to: a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, a processor 510, and a power supply 511. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 5 is not intended to be limiting of mobile terminals, and that a mobile terminal may include more or fewer components than shown, 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 510 is configured to detect a current capacitance value of a screen of the mobile terminal; judging whether a film is pasted on a screen of the mobile terminal or not according to the current capacitance value and a preset capacitance value; when the fact that a film is pasted on a screen of a mobile terminal is determined, judging whether the film influences an infrared distance measuring function of the mobile terminal or not; when the film is used for influencing the infrared distance measurement function of the mobile terminal, determining the thickness of the film; when the thickness of the film is larger than a first preset thickness threshold and smaller than a second preset thickness threshold, improving the emission energy of an infrared sensor so as to reduce the influence of the film on the infrared distance measurement function of the mobile terminal; when the thickness of the adhesive film is larger than or equal to the second preset thickness threshold value, prompting a user that the thickness of the adhesive film is not appropriate and the adhesive film needs to be replaced, wherein the second preset thickness threshold value is larger than the first preset thickness threshold value.

According to the mobile terminal provided by the embodiment of the invention, when the film is determined to be pasted on the screen according to the current capacitance value and the preset capacitance value of the screen, whether the film influences the infrared distance measurement function of the mobile terminal is judged, the thickness of the film is determined when the film influences the infrared distance measurement function of the mobile terminal, the emission energy of the infrared sensor is increased when the thickness of the film is larger than a first preset thickness threshold value and smaller than a second preset thickness threshold value, and the user is prompted that the thickness of the film is not appropriate and the film needs to be replaced when the thickness of the film is larger than or equal to the second preset thickness threshold value.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 501 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 510; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 501 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. In addition, the radio frequency unit 501 can 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 502, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.

The audio output unit 503 may convert audio data received by the radio frequency unit 501 or the network module 502 or stored in the memory 509 into an audio signal and output as sound. Also, the audio output unit 503 may also provide audio output related to a specific function performed by the mobile terminal 500 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 503 includes a speaker, a buzzer, a receiver, and the like.

The input unit 504 is used to receive an audio or video signal. The input Unit 504 may include a Graphics Processing Unit (GPU) 5041 and a microphone 5042, and the Graphics processor 5041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 506. The image frames processed by the graphic processor 5041 may be stored in the memory 509 (or other storage medium) or transmitted via the radio frequency unit 501 or the network module 502. The microphone 5042 may receive sounds and may be capable of processing such sounds 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 501 in case of the phone call mode.

The mobile terminal 500 also includes at least one sensor 505, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 5061 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 5061 and/or a backlight when the mobile terminal 500 is moved 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 sensor 505 may further 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., wherein the infrared sensor can measure a distance between an object and the mobile terminal by emitting and receiving infrared light, which will not be described herein.

The display unit 506 is used to display information input by the user or information provided to the user. The Display unit 506 may include a Display panel 5061, and the Display panel 5061 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 507 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 507 includes a touch panel 5071 and other input devices 5072. Touch panel 5071, also referred to as a touch screen, may collect touch operations by a user on or near it (e.g., operations by a user on or near touch panel 5071 using a finger, stylus, or any suitable object or attachment). The touch panel 5071 may include two parts of 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 510, and receives and executes commands sent by the processor 510. In addition, the touch panel 5071 may be implemented in various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 5071, the user input unit 507 may include other input devices 5072. In particular, other input devices 5072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

Further, the touch panel 5071 may be overlaid on the display panel 5061, and when the touch panel 5071 detects a touch operation thereon or nearby, the touch operation is transmitted to the processor 510 to determine the type of the touch event, and then the processor 510 provides a corresponding visual output on the display panel 5061 according to the type of the touch event. Although in fig. 5, the touch panel 5071 and the display panel 5061 are two independent components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 5071 and the display panel 5061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.

The interface unit 508 is an interface through which an external device is connected to the mobile terminal 500. 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 108 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 500 or may be used to transmit data between the mobile terminal 500 and external devices.

The memory 509 may be used to store software programs as well as various data. The memory 509 may mainly include a storage program area and a storage data area, wherein the storage program 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, etc.), 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 509 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 510 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 509 and calling data stored in the memory 509, thereby performing overall monitoring of the mobile terminal. Processor 510 may include one or more processing units; preferably, the processor 510 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 510.

The mobile terminal 500 may further include a power supply 511 (e.g., a battery) for supplying power to various components, and preferably, the power supply 511 may be logically connected to the processor 510 via a power management system, so that functions of managing charging, discharging, and power consumption are performed via the power management system.

In addition, the mobile terminal 500 includes some functional modules that are not shown, and thus, are not described in detail herein.

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 computer program implements the processes of the methods 100 and 200, 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.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.

Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.

It should also be noted that 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.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. A method for detecting the thickness of a film is characterized by comprising the following steps:
detecting a current capacitance value of a screen of the mobile terminal;
judging whether a film is pasted on a screen of the mobile terminal or not according to the current capacitance value and a preset capacitance value;
when the fact that a film is pasted on a screen of a mobile terminal is determined, judging whether the film influences an infrared distance measuring function of the mobile terminal or not;
when the film is used for influencing the infrared distance measurement function of the mobile terminal, determining the thickness of the film;
when the thickness of the film is larger than a first preset thickness threshold and smaller than a second preset thickness threshold, improving the emission energy of an infrared sensor so as to reduce the influence of the film on the infrared distance measurement function of the mobile terminal; wherein, the emission energy of the infrared sensor is improved, comprising: according to the relation between the thickness of the film and the emission energy, the emission energy of the infrared sensor is improved, wherein the thicker the thickness of the film is, the larger the emission energy of the infrared sensor is;
when the thickness of the adhesive film is larger than or equal to the second preset thickness threshold value, prompting a user that the thickness of the adhesive film is not appropriate and the adhesive film needs to be replaced, wherein the second preset thickness threshold value is larger than the first preset thickness threshold value.
2. The method according to claim 1, wherein the determining whether a film is attached to the screen of the mobile terminal according to the current capacitance value and a preset capacitance value comprises:
if the difference value between the current capacitance value and the preset capacitance value is larger than or equal to the preset capacitance difference value, determining that a film is pasted on the screen of the mobile terminal;
and if the difference value between the current capacitance value and the preset capacitance value is smaller than the preset capacitance difference value, determining that no film is pasted on the screen of the mobile terminal.
3. The method according to claim 1 or 2, wherein the determining whether the film affects an infrared distance measurement function of the mobile terminal comprises:
emitting first infrared light with energy being preset emission energy through the infrared sensor;
receiving, by the infrared sensor, first reflected light of the first infrared light;
determining an energy of the first reflected light;
and determining whether the film is affected on the infrared distance measuring function of the mobile terminal according to the difference value between the energy of the first reflected light and a preset receiving energy and a preset energy difference value, wherein the preset receiving energy is the energy of second reflected light of second infrared light emitted by the preset emitting energy when no film is adhered on a screen of the mobile terminal.
4. The method of claim 3, wherein said determining the thickness of the patch comprises:
and determining the thickness of the adhesive film according to the energy of the first reflected light, the energy of the second reflected light and the preset emission energy.
5. A mobile terminal, comprising:
the detection unit is used for detecting the current capacitance value of the screen of the mobile terminal;
the first processing unit is used for judging whether a film is pasted on the screen of the mobile terminal according to the current capacitance value and a preset capacitance value;
the first processing unit is further configured to determine whether a film is attached to the screen of the mobile terminal to affect an infrared distance measurement function of the mobile terminal;
the second processing unit is used for determining the thickness of the adhesive film when the adhesive film influences the infrared distance measuring function of the mobile terminal;
the second processing unit is further configured to:
when the thickness of the adhesive film is larger than a first preset thickness threshold and smaller than a second preset thickness threshold, according to the relation between the thickness of the adhesive film and the emission energy, the emission energy of the infrared sensing unit is improved, so that the influence of the adhesive film on the infrared distance measurement function of the mobile terminal is reduced; the thicker the thickness of the adhesive film is, the larger the emission energy of the infrared sensing unit is;
when the thickness of the adhesive film is larger than or equal to the second preset thickness threshold value, prompting a user that the thickness of the adhesive film is not appropriate and the adhesive film needs to be replaced, wherein the second preset thickness threshold value is larger than the first preset thickness threshold value.
6. The mobile terminal according to claim 5, wherein the first processing unit is specifically configured to:
if the difference value between the current capacitance value and the preset capacitance value is larger than or equal to the preset capacitance difference value, determining that a film is pasted on the screen of the mobile terminal;
and if the difference value between the current capacitance value and the preset capacitance value is smaller than the preset capacitance difference value, determining that no film is pasted on the screen of the mobile terminal.
7. The mobile terminal according to claim 5 or 6, wherein the first processing unit is specifically configured to:
emitting first infrared light with energy as preset emission energy through an infrared sensing unit;
receiving first reflected light of the first infrared light by the infrared sensing unit;
determining an energy of the first reflected light;
and determining whether the film is affected on the infrared distance measuring function of the mobile terminal according to the difference value between the energy of the first reflected light and a preset receiving energy and a preset energy difference value, wherein the preset receiving energy is the energy of second reflected light of second infrared light emitted by the preset emitting energy when no film is adhered on a screen of the mobile terminal.
8. The mobile terminal of claim 7, wherein the second processing unit is further configured to:
and determining the thickness of the adhesive film according to the energy of the first reflected light, the energy of the second reflected light and the preset emission energy.
9. A mobile terminal, comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method for detecting the thickness of a film according to any one of claims 1 to 4.
10. A computer-readable medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for detecting a thickness of a patch according to any one of claims 1 to 4.
CN201710983845.0A 2017-10-20 2017-10-20 Film thickness detection method and mobile terminal CN107782280B (en)

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