CN113138380A - Control method and device of function module, mobile terminal and storage medium - Google Patents
Control method and device of function module, mobile terminal and storage medium Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
- G01S13/589—Velocity or trajectory determination systems; Sense-of-movement determination systems measuring the velocity vector
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- G—PHYSICS
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- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
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- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0346—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors
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Abstract
The disclosure relates to a method and a device for controlling a functional module, a mobile terminal and a storage medium, wherein the method comprises the following steps: when at least one functional module is positioned outside the shell of the mobile terminal, transmitting radar waves and detecting echoes of the radar waves; determining the motion information of the mobile terminal according to the transmitting parameters of the radar waves and the echo parameters of the echoes; determining whether the mobile terminal meets an impact risk condition or not according to the motion information; and when the mobile terminal meets the impact risk condition, controlling the functional module to move into the shell. Therefore, the mobile terminal is determined to meet the impact risk condition through the motion information of the mobile terminal, the functional module is controlled to move into the shell, the phenomenon that the functional module is impacted is reduced, and the anti-collision performance of the mobile terminal is further enhanced.
Description
Technical Field
The present disclosure relates to the field of mobile terminal technologies, and in particular, to a method and an apparatus for controlling a function module, a mobile terminal, and a storage medium.
Background
In the related art, a mobile terminal performs acceleration detection through an acceleration sensor installed in the mobile terminal to determine motion information of the mobile terminal, but the motion information is affected by the performance of the acceleration sensor. For example, the response time or the data processing time of the acceleration sensor is too long, so that the speed of judging the motion information of the mobile terminal is low, and therefore the mobile terminal cannot be judged in time when being impacted, and therefore a protective measure cannot be made in time.
Disclosure of Invention
According to a first aspect of the embodiments of the present disclosure, a method for controlling a function module is provided, which is applied to a mobile terminal, where the mobile terminal includes: at least one function module capable of moving inside and outside the housing of the mobile terminal; the method comprises the following steps:
when at least one functional module is positioned outside a shell of the mobile terminal, transmitting radar waves and detecting echoes of the radar waves;
determining the motion information of the mobile terminal according to the transmitting parameters of the radar waves and the echo parameters of the echoes;
determining whether the mobile terminal meets an impact risk condition or not according to the motion information;
and when the mobile terminal meets the impact risk condition, controlling the functional module to move into the shell.
Optionally, the motion information includes: the relative movement speed of the mobile terminal and the detection object;
the determining whether the mobile terminal meets the impact risk condition according to the motion information includes:
and if the relative running speed is greater than a speed threshold, determining that the mobile terminal meets the collision risk condition.
Optionally, the transmission parameters include: a transmission frequency; the echo parameters include: receiving a frequency;
determining a frequency difference between the transmitting frequency and the receiving frequency according to the transmitting frequency and the receiving frequency;
and determining the relative motion speed of the mobile terminal and the detection object according to the frequency difference.
Optionally, the method further comprises:
detecting echoes of the radar waves in a plurality of transmit directions;
determining the radar wave corresponding to the echo with the largest change of the receiving frequency according to the receiving frequency of the echo parameter of the plurality of echoes;
and determining the motion direction of the mobile terminal according to the transmitting direction of the radar wave corresponding to the echo with the largest change of the receiving frequency.
Optionally, the method further comprises:
when the mobile terminal does not meet the impact risk condition, maintaining the functional module outside the shell of the mobile terminal outside the shell.
Optionally, the function module includes at least one of: image acquisition module and volume module.
According to a second aspect of the embodiments of the present disclosure, there is provided a control device for a function module, applied to a mobile terminal, the mobile terminal including: at least one functional module capable of moving inside and outside a housing of the mobile terminal, the apparatus comprising:
the transmitting and detecting module is configured to transmit radar waves and detect echoes of the radar waves when at least one functional module is positioned outside a shell of the mobile terminal;
a first determining module configured to determine motion information of the mobile terminal according to a transmitting parameter of the radar wave and an echo parameter of the echo;
a second determination module configured to determine whether the mobile terminal satisfies an impact risk condition according to the motion information;
the control module is configured to control the functional module to move into the shell when the mobile terminal meets the collision risk condition.
Optionally, the motion information includes: the relative movement speed of the mobile terminal and the detection object;
the second determining module is specifically configured to determine that the mobile terminal meets an impact risk condition if the relative movement speed is greater than a speed threshold.
Optionally, the transmission parameters include: a transmission frequency; the echo parameters include: receiving a frequency;
the first determination module further configured to:
determining a frequency difference between the transmitting frequency and the receiving frequency according to the transmitting frequency and the receiving frequency;
and determining the relative motion speed of the mobile terminal and the detection object according to the frequency difference.
Optionally, the apparatus further comprises:
a detection module configured to detect echoes of the radar waves in a plurality of transmission directions;
a third determining module configured to determine, according to a receiving frequency in the echo parameters of the plurality of echoes, the radar wave corresponding to the echo with the largest change in the receiving frequency;
a fourth determining module configured to determine the moving direction of the mobile terminal according to a transmitting direction of the radar wave corresponding to the echo with the largest change in the receiving frequency.
Optionally, the apparatus further comprises:
a maintaining module configured to maintain the functional module located outside a housing of the mobile terminal to be located outside the housing when the mobile terminal does not satisfy the impact risk condition.
Optionally, the function module includes at least one of: the device comprises an image acquisition module and a volume control module.
According to a third aspect of the embodiments of the present disclosure, there is provided a mobile terminal including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to carry out the executable instructions to carry out the method steps of any of the above.
According to a fourth aspect of embodiments of the present disclosure, there is provided a non-transitory computer readable storage medium having stored thereon a computer program for execution by a processor to perform the method steps of any of the above.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
according to the embodiment of the disclosure, when at least one functional module is positioned outside a shell of the mobile terminal, radar waves are emitted and echoes of the radar waves are detected; determining the motion information of the mobile terminal according to the transmitting parameters of the radar waves and the echo parameters of the echoes; determining whether the mobile terminal meets an impact risk condition or not according to the motion information; and when the mobile terminal meets the impact risk condition, controlling the functional module to move into the shell. Therefore, the motion information of the mobile terminal can be rapidly determined according to the transmitting parameters of the radar waves and the echo parameters of the echoes, and the control function module moves into the shell when the mobile terminal meets the collision risk condition is determined according to the motion information of the mobile terminal. Compared with the prior art, the acceleration sensor is used for judging the motion information of the mobile terminal, the radar wave can be used for improving the judgment speed of the motion information of the mobile terminal, the phenomenon that the functional module is damaged due to the fact that the acceleration sensor cannot timely make protection on the functional module when the collision risk is caused because the acceleration sensor does not timely make judgment is reduced, and the anti-collision performance of the mobile terminal is guaranteed.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a flow chart illustrating a method of controlling a function module in accordance with an exemplary embodiment;
FIG. 2 is a schematic diagram illustrating a mobile terminal having a radar sensor in accordance with an exemplary embodiment;
FIG. 3 is another flow chart illustrating a method of controlling a function module in accordance with an exemplary embodiment;
FIG. 4 is a schematic diagram illustrating a scenario of a method for controlling a function module, according to an exemplary embodiment;
FIG. 5 is a detailed flow chart illustrating a method for controlling a function module in accordance with an exemplary embodiment;
FIG. 6 is a block diagram illustrating a control device of a functional module in accordance with an exemplary embodiment;
fig. 7 is a block diagram illustrating a mobile terminal according to an example embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Fig. 1 is a flowchart illustrating a method for controlling a function module according to an exemplary embodiment, where as shown in fig. 1, the method is applied to a mobile terminal, and the mobile terminal includes: at least one function module capable of moving inside and outside a housing of the mobile terminal, the method comprising the steps of:
step 101: and when at least one functional module is positioned outside the shell of the mobile terminal, transmitting radar waves and detecting echoes of the radar waves.
Here, the mobile terminal may be a mobile phone, a tablet computer, a notebook computer, or the like; the mobile terminal may also be a wearable device, such as a smart watch or the like. In general, any mobile terminal having at least one functional module capable of moving inside and outside the mobile terminal housing may be used.
Here, the function module may include at least one of: the device comprises an image acquisition module and a volume control module.
Wherein the image acquisition module may include: the mobile terminal comprises a front camera which is installed on the mobile terminal and can move inside and outside a shell of the mobile terminal, and/or a rear camera which is installed on the mobile terminal and can move inside and outside the shell of the mobile terminal. The volume control module may include: the mobile terminal comprises a volume adding key capable of moving inside and outside a mobile terminal shell and/or a volume reducing key capable of moving inside and outside the mobile terminal shell.
Here, if at least one of the functional modules is located outside the housing of the mobile terminal, the functional module needs to be protected.
Here, the radar wave is emitted from a radar sensor mounted on the mobile terminal, and in practical applications, the radar sensor may be mounted at any position within a housing of the mobile terminal.
Specifically, referring to fig. 2, fig. 2 is a schematic diagram illustrating a mobile terminal having a radar sensor according to an exemplary embodiment, as shown in fig. 2, at least two radar sensors may be mounted on the mobile terminal 2, for example, the two radar sensors may include: a front radar sensor 21 mounted on the display screen of the mobile terminal 2 and a rear radar sensor 22 mounted on the side of the mobile terminal 2 opposite to the display screen.
In other embodiments, there may be only one radar sensor, and the radar sensor may be disposed on a rotating member of the mobile terminal and may change direction based on driving of the rotating member in the mobile terminal. For example, the driving based on the rotating assembly makes the radar sensor face one side of the display screen; or, based on the driving of the rotating component, the radar sensor is enabled to emit radar waves to a set direction.
In practical applications, the radar sensor may be one or more. The radar sensor may be disposed at any side of the mobile terminal.
It should be noted that radar sensors mounted on different sides of the mobile terminal may be used to detect whether a crash event is imminent on the different sides relative to the mobile terminal. For example, the front radar sensor 21 mounted on the display screen of the mobile terminal may be used to detect whether a collision event is about to occur on the side where the display screen of the mobile terminal is located; and a rear radar sensor 22 mounted on the side of the mobile terminal opposite the display screen may be used to detect the possibility of a crash event occurring on the side of the mobile terminal opposite the display screen.
Here, the impact event refers to an event in which the mobile terminal collides with a predetermined object. An impact risk condition is satisfied if an impact event is imminent.
This embodiment can set up radar sensor through the different sides at mobile terminal, detect out whether mobile terminal different sides are about to take place the striking incident to reduce the phenomenon that can not damage because of the emergence of striking incident at the function module of the internal and external motion of mobile terminal casing of installation on mobile terminal's the different sides, thereby guarantee mobile terminal's crashproof ability.
Step 102: and determining the motion information of the mobile terminal according to the transmitting parameters of the radar waves and the echo parameters of the echoes.
Here, the transmission parameter may include at least one of: emission time, emission frequency, and emission angle. The echo parameters may include at least one of: reception time, reception frequency, and reception angle.
It should be noted that a radar wave is an electromagnetic wave, and its propagation speed is the same as the speed of light. Therefore, the motion information of the mobile terminal can be rapidly determined according to the transmitting parameters of the radar waves and the echo parameters of the echoes, so that the speed of the mobile terminal for judging the motion information is increased, and a foundation is laid for timely making protective measures when the mobile terminal is determined to meet the collision risk condition according to the motion information.
Step 103: and determining whether the mobile terminal meets the collision risk condition or not according to the motion information.
In some embodiments, the motion information includes at least a relative motion speed of the mobile terminal and the detection object; the determining whether the mobile terminal meets the impact risk condition according to the motion information includes: and if the relative movement speed is greater than a speed threshold, determining that the mobile terminal meets the collision risk condition.
In fact, the faster the relative movement speed of the mobile terminal and the detection object, the higher the risk of collision between the mobile terminal and the detection object; conversely, the slower the relative motion speed of the mobile terminal and the detection object, the lower the risk of the mobile terminal colliding with the detection object.
Here, the speed threshold may be a critical value for meeting an impact risk condition, i.e. if the relative movement speed reaches the speed threshold, it indicates that the impact risk condition is met, i.e. an impact event is about to occur.
Here, through setting of the speed threshold, it can be conveniently determined whether the mobile terminal satisfies the collision risk condition.
In some embodiments, the speed threshold may be a vulnerable speed value, where the vulnerable speed value is a highest speed that is obtained by testing a functional module of the mobile terminal before factory shipment and can cause the functional module to be damaged. Certainly, in practical application, the speed threshold may be set to be smaller than the above-mentioned vulnerable speed value, so that the functional module of the mobile terminal can be more effectively protected from being damaged when an impact event occurs, and the anti-collision performance of the mobile terminal is further ensured.
In the embodiment, whether the mobile terminal meets the collision risk condition can be quickly judged through the relative motion speed between the mobile terminal and the detection object, so that a protective measure for resisting the collision risk is quickly taken when the relative motion speed is greater than a speed threshold, the phenomenon that the mobile terminal is damaged due to the occurrence of a collision event is reduced, and the collision resistance of the mobile terminal is ensured.
Specifically, fig. 3 is another flowchart illustrating a control method of a functional module according to an exemplary embodiment, where as shown in fig. 3, a transmitting parameter of a radar wave includes a transmitting frequency, and an echo parameter of an echo includes a receiving frequency;
the step 102, namely determining the motion information of the mobile terminal according to the transmitting parameter of the radar wave and the echo parameter of the echo, includes:
step 1021: determining a frequency difference between the transmitting frequency and the receiving frequency according to the transmitting frequency and the receiving frequency;
step 1022: and determining the relative motion speed of the mobile terminal and the detection object according to the frequency difference.
It is understood that the transmitting frequency refers to the frequency of the radar wave transmitted by the radar sensor; the receiving frequency refers to the frequency of the return wave which is returned after the radar sensor receives the radar wave and meets the surface of the detection object.
In practical applications, the frequency difference between the transmitting frequency of the radar wave and the receiving frequency of the echo is called doppler shift. According to the Doppler frequency shift, the relative speed between the mobile terminal which transmits the radar wave and the detection object which generates the echo based on the radar wave can be measured. In this way, the relative movement speed of the mobile terminal and the detection object can be calculated according to the frequency difference between the transmitting frequency of the radar wave and the receiving frequency of the echo wave.
Specifically, the relative movement speed of the mobile terminal and the detection object can be calculated by the following formula:
V＝v0(f1-f2)/f1
here, V denotes a relative movement speed of the mobile terminal and the detection object, V0Representing the propagation velocity of a radar wave in air, f1Representing the transmission frequency of the radar wave, said f2Is the received frequency of the echo.
In this embodiment, whether the relative movement speed of the mobile terminal and the detection object reaches the speed threshold can be quickly determined by the frequency difference determined by the emission parameter of the radar wave and the echo parameter of the echo, so as to determine whether the collision risk condition is satisfied, thereby increasing the determination speed for determining whether the collision risk condition is satisfied. That is to say, in the present embodiment, the relative motion speed between the mobile terminal and the detection object included in the motion information of the mobile terminal can be quickly calculated only by calculating the doppler shift of the primary echo, and therefore, the motion information of the mobile terminal is determined by the radar wave, not only because the propagation speed of the radar wave is high, but also the data processing for the radar wave is fast.
In other embodiments, the motion information further comprises: a distance between the mobile terminal and the detection object in a movement direction of the mobile terminal; the determining whether the mobile terminal meets the impact risk condition according to the motion information includes: and if the distance is smaller than a distance threshold value, determining that the mobile terminal meets the collision risk condition.
It can be understood that the smaller the distance between the mobile terminal and the detection object in the motion direction of the mobile terminal, the higher the risk of the mobile terminal colliding with the detection object in the motion direction of the mobile terminal; conversely, the greater the distance between the mobile terminal and the probe object in the direction of motion of the mobile terminal, the lower the risk of the mobile terminal colliding with the probe object in the direction of motion of the mobile terminal.
Here, the distance threshold may be a critical value for meeting an impact risk condition, i.e. if the distance reaches the speed threshold, indicating that the impact risk condition is met, i.e. an impact event is imminent.
Here, whether the mobile terminal satisfies the collision risk condition can be conveniently judged through setting of the distance threshold.
In the embodiment, whether the mobile terminal meets the collision risk condition can be quickly judged through the distance between the mobile terminal and the detection object in the motion direction of the mobile terminal, so that a protection measure for resisting the collision risk is quickly taken when the distance is smaller than a distance threshold, the phenomenon that the mobile terminal is damaged due to the occurrence of a collision event is reduced, and the collision resistance of the mobile terminal is ensured.
In some embodiments, the direction of motion of a mobile terminal may be determined using an acceleration sensor mounted on the mobile terminal.
In other embodiments, the method further comprises:
detecting echoes of the radar waves in a plurality of transmit directions; determining the radar wave corresponding to the echo with the largest change of the receiving frequency according to the receiving frequency in the echo parameters of the plurality of echoes; and determining the motion direction of the mobile terminal according to the transmitting direction of the radar wave corresponding to the echo with the largest change of the receiving frequency.
It can be understood that, when there are radar waves in multiple directions for transmission, when the doppler frequency difference of a radar wave in a certain direction changes most, that is, the receiving frequency changes most, it indicates that the mobile terminal approaches the detection object in the certain direction most quickly, meaning that the radar wave is moving in the certain direction, so that the moving direction of the mobile terminal can be determined.
In this embodiment, the speed is faster when the motion direction of the mobile terminal is determined by the radar wave relative to the speed when the motion direction of the mobile terminal is determined by the acceleration, and the motion direction of the mobile terminal can be rapidly judged, so that the speed of judging the distance between the mobile terminal and the detection object in the motion direction of the mobile terminal is increased.
It is to be added that, in the case that the moving direction of the mobile terminal is determined, the detection object in the moving direction of the mobile terminal can be determined accordingly.
In some embodiments, the distance between the mobile terminal and the detection object in the motion direction of the mobile terminal may be determined according to a transmission time in a transmission parameter of the radar wave and a reception time in an echo parameter of the echo in the motion direction of the mobile terminal.
The distance between the mobile terminal and the detection object in the motion direction of the mobile terminal can be calculated by the transmitting time of the radar wave and the receiving time of the echo in the motion direction of the mobile terminal and the propagation speed of the radar wave in the air.
It should be noted that in some cases, there is a risk of collision only if the distance is less than the distance threshold, and if the distance is large enough, collision may not occur even at a fast speed. According to the embodiment, whether the mobile terminal meets the collision risk condition or not can be determined more accurately by introducing the distance.
In practical applications, whether the collision risk condition is satisfied can be determined according to the relative movement speed of the mobile terminal and the detection object and the distance between the mobile terminal and the detection object in the movement direction of the mobile terminal.
Specifically, the determining whether the mobile terminal meets an impact risk condition according to the motion information includes:
and if the relative movement speed is greater than the speed threshold and the distance is less than the distance threshold, determining that the mobile terminal meets the collision risk condition.
Therefore, whether the mobile terminal meets the collision risk condition or not can be judged more accurately by using the two types of motion information of the relative motion speed and the distance as judgment factors for judging whether the two types of motion information meet the collision risk condition or not, so that the use experience of a user is facilitated.
Step 104: and when the mobile terminal meets the impact risk condition, controlling the functional module to move into the shell.
In this embodiment, through the transmitting parameter of the radar wave and the echo parameter of the echo, the motion information of the mobile terminal can be determined, so as to determine whether the mobile terminal meets the impact risk condition according to the motion information, determine whether the impact event is about to occur, and control the function module to move in the shell when the impact event is about to occur, namely meet the impact risk condition, thereby reducing the damage phenomenon of the function module caused when the impact event occurs, and ensuring the anti-collision performance of the mobile terminal. Compared with the method for judging the motion information of the mobile terminal by using the acceleration sensor, the method has the advantages that the radar wave is an electromagnetic wave, the speed of the electromagnetic wave is equivalent to the light speed, the propagation speed is high, and the motion information of the mobile terminal can be quickly determined only by calculating the transmitting parameter and the receiving parameter.
In other embodiments, the method further comprises:
when the mobile terminal does not meet the impact risk condition, maintaining the functional module outside the shell of the mobile terminal outside the shell.
That is, in some scenarios, even if a mobile terminal detects that the mobile terminal is moving through radar waves emitted by a radar sensor, motion information indicates that the impact risk condition is not satisfied, the functional module located outside a housing of the mobile terminal is maintained to be located outside the housing. Therefore, the misjudgment phenomenon caused by the movement of the mobile terminal due to the fact that the mobile terminal is held by hands can be reduced, meanwhile, the use of the mobile terminal by a user can not be influenced under the situation of the misjudgment phenomenon, and the use experience of the mobile terminal is improved.
In some scenarios, the mobile terminal may hit a wall or other obstacles during movement, for example, when the user runs with the smart watch, the user may inadvertently hit a bicycle or other obstacles in front. In order to protect the function module of the mobile terminal to further ensure the anti-collision performance of the mobile terminal, here, the detection object may be a bicycle or the other obstacle, and whether the collision risk condition is met is judged by determining the relative movement speed between the smart watch and the bicycle or the other obstacle.
In other scenarios, the mobile terminal may be dropped to the ground in a crash event.
In other embodiments, the probe object comprises the ground; the step 103 of determining whether the mobile terminal meets the impact risk condition according to the motion information includes: and according to the dropping speed of the mobile terminal, if the dropping speed is greater than the speed threshold, determining that the mobile terminal meets the impact risk condition, namely determining that the mobile terminal is about to fall to the ground.
Here, during the falling process of the mobile terminal, the radar wave may emit a radar wave to the ground, and the radar wave may return a corresponding echo after passing through the ground. According to the emission parameters of radar waves emitted to the ground by the radar sensor and the echo parameters of echoes, the motion information of the mobile terminal can be rapidly determined, so that whether the dropping speed of the mobile terminal to the ground reaches the speed threshold value or not is determined according to the motion information, and the function module is controlled to move into the shell only when the speed threshold value is reached.
In this embodiment, judge that mobile terminal's tenesmus speed all reaches the speed threshold value through the radar wave to it is all to take place to fall the striking incident on ground all to determine, if the tenesmus speed is greater than the speed threshold value, is also to take place to fall the striking incident on ground, then can control the function module to motion in the casing, thereby reduce mobile terminal and fall the damage phenomenon to the function module when the ground, guaranteed mobile terminal's crashproof ability.
In other scenarios, when the falling speed does not reach the speed threshold, it may be that the mobile terminal is not in a state of falling on the ground, but that the user is holding the mobile terminal and is going downstairs, etc. At this moment, if the control function module moves in the shell, the use of the function module in the mobile terminal is influenced, and poor user experience is certainly brought. Therefore, in some embodiments, when the dropping speed does not reach the speed threshold, the function module outside the housing of the mobile terminal is maintained to be located outside the housing, so as to reduce the occurrence of the misjudgment phenomenon.
Of course, in other embodiments, the determining whether the mobile terminal satisfies the impact risk condition according to the motion information includes: according to the dropping speed of the mobile terminal and the distance between the mobile terminal and the ground, if the dropping speed is greater than the speed threshold value and the distance between the mobile terminal and the ground is smaller than the distance threshold value, it is determined that the mobile terminal meets the impact risk condition, namely, it is determined that the mobile terminal is about to fall to the ground.
Therefore, the phenomenon that unnecessary anti-collision protection is carried out when the mobile terminal is far away from the ground can be reduced, and the resource consumption of the mobile terminal is saved.
Further, the present disclosure provides a specific embodiment to further understand the control method of the functional module provided in the embodiment of the present disclosure.
In this embodiment, the mobile terminal is a mobile phone, the functional module is a camera, and dropping of the mobile phone is taken as a scene. In the related technology, the acceleration sensor is used for judging the free landing of the mobile phone, and whether the mobile phone falls to the ground or not is judged by acquiring and calculating acceleration information, namely whether the mobile terminal is about to have an impact event or not is judged. Because the acceleration sensor needs a certain calculation time in the calculation and processing process and has a certain probability of causing problems such as misjudgment or time process identification, the landing of the mobile phone cannot be accurately judged in time. If a mobile phone falls down in the using process, the falling threatens the popped functional module, such as a camera contained in the image acquisition module, so that the timeliness of the falling detection becomes important.
Referring to fig. 4, fig. 4 is a schematic view of a scene of a control method of a function module according to an exemplary embodiment, as shown in fig. 4, a front radar sensor and a rear radar sensor are respectively installed in front of and behind a mobile phone 20, the radar sensors transmit radar waves to the ground and receive echoes returned from the ground 4, so as to determine a current dropping speed of the mobile phone to the ground.
Specifically, fig. 5 is a specific flowchart illustrating a control method of a function module according to an exemplary embodiment, and as shown in fig. 5, the method includes:
step 51: popping up a camera by the mobile phone;
here, the step 51 is that, when the pop-up camera is turned on, the method may be equivalent to the step 101 described in the above embodiment, when at least one of the function modules is located outside the housing of the mobile terminal.
Step 52: transmitting radar waves;
here, step 52 may be equivalent to step 101 described in the above embodiment, that is, when there is at least one functional module located outside the housing of the mobile terminal, transmitting a radar wave and detecting an echo of the radar wave.
Step 53: detecting the speed of the object by radar waves;
here, step 53 may be equivalent to step 102 described in the above embodiment, that is, determining the motion information of the mobile terminal according to the transmission parameter of the radar wave and the echo parameter of the echo.
Step 54: judging the falling or the risk impact;
here, step 54 may be equivalent to step 103 described in the above embodiment, that is, determining whether the mobile terminal satisfies an impact risk condition according to the motion information; and if the mobile terminal meets the collision risk condition, judging that the mobile terminal falls down or has risk collision.
Step 55: performing protection work;
here, the protection work may include: and controlling the camera to move towards the shell of the mobile phone. Step 55 may correspond to step 104 described in the above embodiments: when the mobile terminal meets the collision risk condition, namely when the mobile terminal is judged to fall or have risk collision, the functional module is controlled to move into the shell. Therefore, the damage phenomenon caused by the fact that the camera falls to the ground can be reduced, and the anti-collision performance of the mobile phone is further guaranteed.
In some embodiments, the distance between the mobile phone and the ground may be further used to determine whether the collision risk condition is satisfied, so as to accurately determine whether the mobile terminal satisfies the collision risk condition.
Compared with the prior art, the judgment of the mobile phone motion information by utilizing the acceleration sensor can improve the judgment speed of the mobile phone motion information by adopting the radar waves, namely, the speed of judging whether the mobile phone is dropped or has risk of impact is improved, and the phenomenon that the protection work is not timely carried out when the impact event happens because the acceleration sensor does not timely make the judgment is reduced, so that the camera of the mobile phone is effectively protected from being damaged due to impact, and the anti-collision performance of the mobile phone is further ensured.
Fig. 6 is a block diagram illustrating a control device of a functional module according to an exemplary embodiment. Referring to fig. 6, the apparatus is applied to a mobile terminal, and the mobile terminal includes: at least one functional module capable of moving inside and outside a housing of the mobile terminal, the apparatus comprising: a transmission and detection module 61, a first determination module 62, a second determination module 63 and a control module 64;
the transmitting and detecting module 61 is configured to transmit radar waves and detect echoes of the radar waves when at least one functional module is located outside a housing of the mobile terminal;
the first determining module 62 is configured to determine motion information of the mobile terminal according to a transmitting parameter of the radar wave and an echo parameter of the echo;
the second determining module 63 is configured to determine whether the impact risk condition is satisfied according to the motion information;
the control module 64 is configured to control the functional module to move into the housing when the mobile terminal meets the impact risk condition.
In some embodiments, the motion information comprises: the relative movement speed of the mobile terminal and the detection object;
the second determining module 63 is specifically configured to determine that the mobile terminal meets the impact risk condition if the relative movement speed is greater than a speed threshold.
In some embodiments, the transmission parameters include: a transmission frequency; the echo parameters include: receiving a frequency;
the first determination module 62 is further configured to:
determining a frequency difference between the transmitting frequency and the receiving frequency according to the transmitting frequency and the receiving frequency;
and determining the relative motion speed of the mobile terminal and the detection object according to the frequency difference.
In some embodiments, the motion information further comprises: a distance between the mobile terminal and the detection object in a movement direction of the mobile terminal;
the second determining module 63 is further specifically configured to determine that the mobile terminal meets the impact risk condition if the distance is smaller than a distance threshold.
In some embodiments, the apparatus further comprises:
a detection module configured to detect echoes of the radar waves in a plurality of transmission directions;
a third determining module configured to determine, according to a receiving frequency in the echo parameters of the plurality of echoes, the corresponding radar wave of the echo of which the receiving frequency changes most;
a fourth determining module configured to determine the moving direction of the mobile terminal according to a transmitting direction of the radar wave corresponding to the echo with the largest change in the receiving frequency.
In some embodiments, the apparatus further comprises:
a maintaining module configured to maintain the functional module located outside a housing of the mobile terminal to be located outside the housing when the mobile terminal does not satisfy the impact risk condition.
In some embodiments, the functional module comprises at least one of: the device comprises an image acquisition module and a volume control module.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Fig. 7 is a block diagram illustrating a mobile terminal 700 according to an example embodiment. For example, the mobile terminal 700 may be a mobile phone, a computer, a digital broadcast mobile terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.
Referring to fig. 7, mobile terminal 700 may include one or more of the following components: a processing component 702, a memory 704, a power component 706, a multimedia component 708, an audio component 710, an input/output (I/O) interface 712, a sensor component 714, and a communication component 716.
The memory 704 is configured to store various types of data to support operation at the mobile terminal 700. Examples of such data include instructions for any application or method operating on mobile terminal 700, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The multimedia component 708 includes a screen that provides an output interface between the mobile terminal 700 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 708 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the mobile terminal 700 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 710 is configured to output and/or input audio signals. For example, the audio component 710 may include a Microphone (MIC) configured to receive external audio signals when the mobile terminal 700 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may further be stored in the memory 804 or transmitted via the communication component 716. In some embodiments, audio component 710 also includes a speaker for outputting audio signals.
The I/O interface 712 provides an interface between the processing component 702 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor component 714 includes one or more sensors for providing various aspects of state assessment for the mobile terminal 700. For example, sensor assembly 714 may detect an open/closed state of mobile terminal 700, the relative positioning of components, such as a display and keypad of mobile terminal 700, sensor assembly 714 may also detect a change in position of mobile terminal 700 or a component of mobile terminal 700, the presence or absence of user contact with mobile terminal 700, orientation or acceleration/deceleration of mobile terminal 700, and a change in temperature of mobile terminal 700. The sensor assembly 714 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 714 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 716 is configured to facilitate communications between the mobile terminal 700 and other devices in a wired or wireless manner. The mobile terminal 700 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 716 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 716 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the mobile terminal 700 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer readable storage medium including instructions, such as the memory 704 including instructions, executable by the processor 720 of the mobile terminal 700 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
A non-transitory computer-readable storage medium, wherein instructions in the storage medium, when executed by a processor of a mobile terminal, enable the mobile terminal to execute the control method of the function module according to the above embodiments.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (16)
1. A control method of a function module is applied to a mobile terminal, and the mobile terminal comprises: at least one function module capable of moving inside and outside the housing of the mobile terminal; the method comprises the following steps:
when at least one functional module is positioned outside a shell of the mobile terminal, transmitting radar waves and detecting echoes of the radar waves;
determining the motion information of the mobile terminal according to the transmitting parameters of the radar waves and the echo parameters of the echoes;
determining whether the mobile terminal meets an impact risk condition or not according to the motion information;
and when the mobile terminal meets the impact risk condition, controlling the functional module to move into the shell.
2. The method of claim 1, wherein the motion information comprises: the relative movement speed of the mobile terminal and the detection object;
the determining whether the mobile terminal meets the impact risk condition according to the motion information includes:
and if the relative movement speed is greater than a speed threshold, determining that the mobile terminal meets the collision risk condition.
3. The method of claim 2, wherein the transmission parameters comprise: a transmission frequency; the echo parameters include: receiving a frequency;
the determining the motion information of the mobile terminal according to the transmitting parameters of the radar waves and the echo parameters of the echoes comprises:
determining a frequency difference between the transmitting frequency and the receiving frequency according to the transmitting frequency and the receiving frequency;
and determining the relative motion speed of the mobile terminal and the detection object according to the frequency difference.
4. The method of any of claims 1 to 3, wherein the motion information further comprises: a distance between the mobile terminal and the detection object in a movement direction of the mobile terminal;
determining whether the mobile terminal meets an impact risk condition according to the motion information, wherein the determining comprises the following steps:
and if the distance is smaller than a distance threshold value, determining that the mobile terminal meets the collision risk condition.
5. The method of claim 4, further comprising:
detecting echoes of the radar waves in a plurality of transmit directions;
determining the radar wave corresponding to the echo with the largest change of the receiving frequency according to the receiving frequency in the echo parameters of the plurality of echoes;
and determining the motion direction of the mobile terminal according to the transmitting direction of the radar wave corresponding to the echo with the largest change of the receiving frequency.
6. The method of claim 1, further comprising:
when the mobile terminal does not meet the impact risk condition, maintaining the functional module outside the shell of the mobile terminal outside the shell.
7. The method of claim 1, wherein the functional module comprises at least one of: the device comprises an image acquisition module and a volume control module.
8. A control device of a functional module is applied to a mobile terminal, and the mobile terminal comprises: at least one functional module capable of moving inside and outside a housing of the mobile terminal, the apparatus comprising:
the transmitting and detecting module is configured to transmit radar waves and detect echoes of the radar waves when at least one functional module is positioned outside a shell of the mobile terminal;
a first determining module configured to determine motion information of the mobile terminal according to a transmitting parameter of the radar wave and an echo parameter of the echo;
a second determination module configured to determine whether the mobile terminal satisfies an impact risk condition according to the motion information;
the control module is configured to control the functional module to move into the shell when the mobile terminal meets the collision risk condition.
9. The apparatus of claim 8, wherein the motion information comprises: the relative movement speed of the mobile terminal and the detection object;
the second determining module is specifically configured to determine that the mobile terminal satisfies the impact risk condition if the relative movement speed is greater than a speed threshold.
10. The apparatus of claim 9, wherein the transmission parameters comprise: a transmission frequency; the echo parameters include: receiving a frequency;
the first determination module further configured to:
determining a frequency difference between the transmitting frequency and the receiving frequency according to the transmitting frequency and the receiving frequency;
and determining the relative motion speed of the mobile terminal and the detection object according to the frequency difference.
11. The apparatus of any of claims 8 to 10, wherein the motion information further comprises: a distance between the mobile terminal and the detection object in a movement direction of the mobile terminal;
the second determining module is specifically configured to determine that the mobile terminal satisfies the impact risk condition if the distance is less than a distance threshold.
12. The apparatus of claim 11, further comprising:
a detection module configured to detect echoes of the radar waves in a plurality of transmission directions;
a third determining module configured to determine, according to a receiving frequency in the echo parameters of the plurality of echoes, the radar wave corresponding to the echo with the largest change in the receiving frequency;
a fourth determining module configured to determine the moving direction of the mobile terminal according to a transmitting direction of the radar wave corresponding to the echo with the largest change in the receiving frequency.
13. The apparatus of claim 8, further comprising:
a maintaining module configured to maintain the functional module located outside a housing of the mobile terminal to be located outside the housing when the mobile terminal does not satisfy the impact risk condition.
14. The apparatus of claim 8, wherein the functional module comprises at least one of: the device comprises an image acquisition module and a volume control module.
15. A mobile terminal, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to carry out the executable instructions to carry out the method steps of any one of claims 1 to 7.
16. A non-transitory computer-readable storage medium, on which a computer program is stored, characterized in that the program is executed by a processor to implement the method steps of any of claims 1 to 7.
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