CN104950918A - Control method for rotary camera and mobile terminal - Google Patents
Control method for rotary camera and mobile terminal Download PDFInfo
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- CN104950918A CN104950918A CN201510332468.5A CN201510332468A CN104950918A CN 104950918 A CN104950918 A CN 104950918A CN 201510332468 A CN201510332468 A CN 201510332468A CN 104950918 A CN104950918 A CN 104950918A
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Abstract
The invention provides a control method for a rotary camera and a mobile terminal. The control method for the rotary camera comprises the following steps: detecting a rotation instruction inputted by a user through a curved-surface side screen of the mobile terminal, and determining a rotation angle and a rotation direction according to the rotation instruction; driving the rotary camera to rotate towards the rotation direction through an electromotor, and detecting a Hall value outputted by a Hall sensor of the mobile terminal in real time; under the condition that a variation trend of the Hall value outputted by the Hall sensor is increased to a first threshold from an initial Hall value and is then decreased to a second threshold, controlling the electromotor to stop running, wherein the initial Hall value is a Hall value outputted by the Hall sensor when the rotation instruction is received. By the adoption of the embodiment of the invention, heating caused by idle rotation or plugged rotation of the electromotor can be avoided, the service life of the electromotor can be prolonged and the energy consumption of the mobile terminal can be reduced.
Description
Technical field
The present invention relates to electronic technology field, particularly relate to a kind of control method and mobile terminal of rotating camera.
Background technology
Along with the progress of electronic technology and the raising of people's living standard, shooting becomes an indispensable activity in people's entertainment life.For meeting the shooting demand of users, in mobile terminal miscellaneous, be all configured with filming apparatus, such as: the mobile terminals such as mobile phone, panel computer, notebook computer are all configured with camera.
Current rotating camera as a kind of camera comparatively conventional on mobile terminal, usually by user's manual rotation or rotated by motor driving.Due to the design feature of rotating camera, angle between rotating camera place plane and mobile terminal main body place plane is no more than a maximal value, when angle between rotating camera place plane and mobile terminal main body place plane has reached maximal value, even if revolution also cannot rotate by driven rotary camera.But when motor driving rotating camera rotates, in order to make rotating camera definitely preposition or definitely rearmounted, motor is that the power of maximal value drives rotating camera to rotate usually with the anglec of rotation.If there is initial angle between rotating camera place plane and mobile terminal main body place plane before rotating, rotating camera when reaching maximum angle will be there will be can not rotate, and motor is still in the idle running rotated or stall phenomenon, motor excessive heating is caused even to damage.
Summary of the invention
Embodiments provide a kind of control method and mobile terminal of rotating camera, motor can be avoided to dally or the heating that causes of stall, extend the serviceable life of motor and save the energy consumption of mobile terminal.
Embodiment of the present invention first aspect provides a kind of control method of rotating camera, can comprise:
The rotate instruction of user's input is detected, according to the described rotate instruction determination anglec of rotation and sense of rotation by the curved sides screen of mobile terminal;
Described rotating camera is driven to rotate to described sense of rotation by motor, and the Hall value that the Hall element detecting mobile terminal in real time exports;
Be from when being reduced to again Second Threshold after initial Hall value increases to first threshold in the variation tendency of the Hall value that described Hall element exports, control described motor out of service, wherein said initial Hall value is the Hall value that when receiving described rotate instruction, described Hall element exports.
In conjunction with first aspect, in the embodiment that the first is feasible,
The described screen of the curved sides by mobile terminal detects the rotate instruction of user's input, comprising:
At the curved sides screen display touch control bar of mobile terminal;
The distance of the direction that detection user slides on described touch control bar and slip;
Described according to the described rotate instruction determination anglec of rotation and sense of rotation, comprising:
Sense of rotation is determined in direction according to described slip;
According to the distance determination anglec of rotation of described slip.
In conjunction with the first feasible embodiment of first aspect, in the embodiment that the second is feasible, the described distance determination anglec of rotation according to described slip, is specially:
If the length of described touch control bar is H, described sliding distance is L, and the rotation range of described rotating camera is α, then determine that the described anglec of rotation is β=α * L/H.
In conjunction with first aspect, in the embodiment that the third is feasible, described control method also comprises:
Be when being reduced to the 3rd threshold value from described initial Hall value in the variation tendency of the Hall value that described Hall element exports, control described motor in the described rotating camera of drive to out of service after described sense of rotation continues rotation first angle.
In conjunction with first aspect, in the 4th kind of feasible embodiment,
Describedly drive described rotating camera to rotate to described sense of rotation by motor, and the Hall element detecting mobile terminal in real time export Hall value time, described control method also comprises:
Judge whether the Hall value that described Hall element exports in Preset Time changes, if judged result is no, then controls described motor out of service.
Embodiment of the present invention second aspect provides a kind of mobile terminal, and described mobile terminal comprises rotating camera, also comprises:
Instruction detection unit, for being detected the rotate instruction of user's input by the curved sides screen of mobile terminal, according to the described rotate instruction determination anglec of rotation and sense of rotation;
First control module, for being driven described rotating camera to rotate to described sense of rotation by motor, and the Hall value that the Hall element detecting mobile terminal in real time exports;
Second control module, be from when being reduced to again Second Threshold after initial Hall value increases to first threshold for the variation tendency of the Hall value exported at described Hall element, control described motor out of service, wherein said initial Hall value is the Hall value that when receiving described rotate instruction, described Hall element exports.
In conjunction with second aspect, in the embodiment that the first is feasible, described instruction detection unit, comprising:
Display subelement, for the curved sides screen display touch control bar at mobile terminal;
Detection sub-unit, for detecting the distance in direction that user slides on described touch control bar and slip;
First determines subelement, for determining sense of rotation according to the direction of described slip;
Second determines subelement, for the distance determination anglec of rotation according to described slip.
In conjunction with the first feasible embodiment of second aspect, in the embodiment that the second is feasible, described second determines subelement, specifically for:
When the length of described touch control bar is H, described sliding distance is L, when the rotation range of described rotating camera is α, determines that the described anglec of rotation is β=α * L/H.
In conjunction with second aspect, in the embodiment that the third is feasible, described mobile terminal also comprises:
3rd control module, variation tendency for the Hall value exported at described Hall element is when being reduced to the 3rd threshold value from described initial Hall value, controls described motor in the described rotating camera of drive to out of service after described sense of rotation continues rotation first angle.
In conjunction with second aspect, in the 4th kind of feasible embodiment, described mobile terminal also comprises:
Judging unit, for driving described rotating camera to rotate to described sense of rotation at described first control module by motor, and when detecting the Hall value of Hall element output of mobile terminal in real time, judge whether the Hall value that described Hall element exports in Preset Time changes;
4th control module, for when the judged result of described judging unit is no, controls described motor out of service.
In the embodiment of the present invention, mobile terminal detects the rotate instruction of user's input, according to the rotate instruction determination anglec of rotation and sense of rotation; Rotated to sense of rotation by motor driven rotary camera, and the Hall value that the Hall element detecting mobile terminal in real time exports; Be from when being reduced to again Second Threshold after initial Hall value increases to first threshold in the variation tendency of Hall value that Hall element exports, illustrate that the angle between rotating camera place plane and mobile terminal main body reaches maximal value, the operation of motor cannot continue driven rotary camera and rotate, then control motor out of service, motor can be avoided to dally or the heating that causes of stall, extend the serviceable life of motor and reduce the energy consumption of mobile terminal.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is an embodiment schematic flow sheet of the control method of the rotating camera that the embodiment of the present invention provides;
Fig. 2 is the corresponding relation schematic diagram between the Hall value that exports of angle in the embodiment of the present invention between rotating camera and terminal body and Hall element;
Fig. 3 is another embodiment schematic flow sheet of the control method of the rotating camera that the embodiment of the present invention provides;
Fig. 4 is an example structure schematic diagram of the mobile terminal that the embodiment of the present invention provides;
Fig. 5 is another example structure schematic diagram of the mobile terminal that the embodiment of the present invention provides;
Fig. 6 is an example structure schematic diagram of instruction detection unit in the mobile terminal that provides of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, Fig. 1 is an embodiment schematic flow sheet of the control method of the rotating camera that the embodiment of the present invention provides.The image pickup method of the embodiment of the present invention can be realized by the mobile terminal with rotating camera, can be mobile phone, panel computer, PC or other there is the mobile terminal of rotating camera.As shown in Figure 1, the control method of described rotating camera can comprise the steps:
S101, detects the rotate instruction of user's input, according to the described rotate instruction determination anglec of rotation and sense of rotation by the curved sides screen of mobile terminal.
In concrete enforcement, mobile terminal detects the slide of user by curved sides screen, and generates rotate instruction according to this slide.
As a kind of feasible embodiment, mobile terminal can to slide control strip in curved sides screen display one, the distance of the direction that detection user slides on this slip control strip and slip, and determine sense of rotation according to the direction of sliding, according to the distance determination anglec of rotation of sliding.
Wherein, above-mentioned sense of rotation is the sense of rotation of the rotating camera determined according to the instruction of user, such as clockwise direction or counterclockwise.The above-mentioned anglec of rotation is the angle that the rotating camera determined according to the instruction of user needs to rotate.In concrete enforcement, the above-mentioned anglec of rotation can not be equal to the angle of the actual rotation of rotating camera.
S102, drives described rotating camera to rotate to described sense of rotation by motor, and the Hall value that the Hall element detecting mobile terminal in real time exports.
In concrete enforcement, motor is rotated by gear drive driven rotary camera, and the number of teeth turned over by controlling motor controls the anglec of rotation of rotating camera.
As a kind of feasible embodiment, rotating camera can be placed on a rotary module, and this rotary module is connected with mobile terminal main body by least one turning axle, and can rotate around this turning axle.This rotary module side is equipped with magnet, and body is provided with Hall element near the position of this rotary module side.In concrete enforcement, the gear drive driven rotary module of motor rotates, and the rotating camera on rotary module and magnet are and then rotated.In rotary course, the distance of magnet and Hall element changes, and the Hall value that Hall element is detected changes.
As a kind of feasible embodiment, after mobile terminal detects the rotate instruction that user inputs, just control motor and start to rotate, the Hall value of Real-Time Monitoring Hall element output simultaneously.
S103, the Hall value exported when described Hall element is from after initial Hall value increases to first threshold, when being reduced to Second Threshold again, control described motor out of service, wherein said initial Hall value is the Hall value that when receiving described rotate instruction, described Hall element exports.
In concrete enforcement, form angle between rotary module and mobile terminal main body, due to reasons such as structural designs, the maximal value of this angle is less than 360 °.In the embodiment that some are feasible, the rotation of rotary module makes above-mentioned angle increase, and when above-mentioned angle has reached maximal value, also cannot driven rotary module rotate even if motor is rotated further.
Seeing also Fig. 2, is the corresponding relation schematic diagram between the Hall value that above-mentioned angle and Hall element export.As shown in Figure 2, when above-mentioned angle is less than 180 °, the Hall value that Hall element exports increases along with the increase of above-mentioned angle.When above-mentioned angle is 180 °, the Hall value that Hall element exports reaches maximal value.After above-mentioned angle is more than 180 °, the Hall value that Hall element exports reduces along with the increase of above-mentioned angle.
In the embodiment of the present invention, first threshold is the maximal value of the Hall value that Hall element exports, the Hall value that when namely above-mentioned angle is 180 °, Hall element exports.Second Threshold is above-mentioned angle when reaching maximal value, the Hall value that Hall element exports.Because each mobile terminal exists individual difference, the first threshold of each mobile terminal and Second Threshold specifically can be obtained by many experiments before dispatching from the factory.
In the embodiment of the present invention, when the rotate instruction that user inputs being detected, the angle between rotary module and mobile terminal main body is called initial angle, and the Hall value that now Hall element exports is called initial Hall value.In the embodiment that some are feasible, the basis of initial angle rotates according to the sense of rotation determined, when above-mentioned angle reaches maximal value, the angle of the actual rotation of rotary module is less than the anglec of rotation determined according to rotate instruction, the motor rotated for driven rotary module in prior art still can continue to run, so that motor dallies or stall.
In the embodiment of the present invention, the Hall value exported when described Hall element is from after initial Hall value increases to first threshold, when being reduced to Second Threshold again, illustrate that the angle between rotary module and mobile terminal main body reaches maximal value, then control described motor out of service, motor can be avoided to dally or stall.
In the embodiment that some are feasible, if Hall value (such as in 200ms) within a period of time does not change, and motor is still in operation, then illustrate that the operation of motor cannot rotate by driven rotary camera, now can control motor out of service, dally or stall to avoid motor.
In the embodiment of the present invention, mobile terminal detects the rotate instruction of user's input, according to the rotate instruction determination anglec of rotation and sense of rotation; Rotated to sense of rotation by motor driven rotary camera, and the Hall value that the Hall element detecting mobile terminal in real time exports; Be from when being reduced to again Second Threshold after initial Hall value increases to first threshold in the variation tendency of Hall value that Hall element exports, illustrate that the angle between rotating camera place plane and mobile terminal main body reaches maximal value, the operation of motor cannot continue driven rotary camera and rotate, then control motor out of service, motor can be avoided to dally or the heating that causes of stall, extend the serviceable life of motor and reduce the energy consumption of mobile terminal.
Refer to Fig. 3, Fig. 3 is another embodiment schematic flow sheet of the control method of the rotating camera that the embodiment of the present invention provides.The control method of the rotating camera of the embodiment of the present invention can be realized by the mobile terminal with rotating camera, can be mobile phone, panel computer, PC or other there is the mobile terminal of rotating camera.As shown in Figure 3, the control method of described rotating camera can comprise the steps:
S301, at the curved sides screen display touch control bar of mobile terminal.
The mobile terminal of the embodiment of the present invention has curved sides screen, alternatively, can be single-curved surface side screen, also can be hyperboloid side screen.
As a kind of feasible embodiment, mobile terminal at curved sides screen display one touch control bar, can input instruction to make user by touch control bar.
S302, the distance of the direction that detection user slides on described touch control bar and slip.
As a kind of feasible embodiment, the direction that user slides on touch control bar comprises two contrary directions, such as, with rear, up and down or left and right etc. before.
In concrete enforcement, the distance that user slides can be less than or equal to the length of touch control bar.
S303, sense of rotation is determined in the direction according to described slip.
Alternatively, glide direction can comprise contrary both direction, such as left and right, front and rear or up and down.Sense of rotation can comprise clockwise or counterclockwise.In concrete enforcement, mobile terminal can pre-set the corresponding relation between glide direction and sense of rotation.Such as, can to pre-set the left direction of glide direction corresponding with the clockwise direction of sense of rotation for mobile terminal.When user slides on the slip control strip that curved sides is shielded, determine that sense of rotation is clockwise direction left.Mobile terminal will be rotated in a clockwise direction by motor driven rotary camera.
S304, according to the distance determination anglec of rotation of described slip.
In the embodiment that some are feasible, according to the conversion rule preset, if the length of described touch control bar is H, described sliding distance is L, and the rotation range of described rotating camera is α, then the described anglec of rotation is β=α * L/H.
S305, drives described rotating camera to rotate to described sense of rotation by motor, and the Hall value that the Hall element detecting mobile terminal in real time exports.
In concrete enforcement, motor is rotated by gear drive driven rotary camera, and the number of teeth turned over by controlling motor controls the anglec of rotation of rotating camera.
As a kind of feasible embodiment, rotating camera can be placed on a rotary module, and this rotary module is connected with mobile terminal main body by least one turning axle, and can rotate around this turning axle.This rotary module side is equipped with magnet, and body is provided with Hall element near the position of this rotary module side.In concrete enforcement, the gear drive driven rotary module of motor rotates, and the rotating camera on rotary module and magnet are and then rotated.In rotary course, the distance of magnet and Hall element changes, and the Hall value that Hall element is detected changes.
As a kind of feasible embodiment, after rotate instruction being detected by curved sides screen, mobile terminal just controls motor to start to rotate, simultaneously the Hall value that exports of Real-Time Monitoring Hall element.
S306, judges whether the Hall value that described Hall element exports in Preset Time changes, and if the determination result is YES, then forwards step S307 or S308 to, if judged result is no, then controls described motor out of service.
In the embodiment that some are feasible, if Hall value (such as in 200ms) within a period of time does not change, and motor is still in operation, then illustrate that the operation of motor cannot rotate by driven rotary camera, now can control motor out of service, dally or stall to avoid motor.
S307, is from when being reduced to again Second Threshold after initial Hall value increases to first threshold in the variation tendency of the Hall value that described Hall element exports, controls described motor out of service.
Wherein, described initial Hall value is the Hall value that when receiving described rotate instruction, described Hall element exports.
In concrete enforcement, form angle between rotary module and mobile terminal main body, due to reasons such as structural designs, the maximal value of this angle is less than 360 °.In the embodiment that some are feasible, the rotation of rotary module makes above-mentioned angle increase, and when above-mentioned angle has reached maximal value, also cannot driven rotary module rotate even if motor is rotated further.
Seeing also Fig. 2, is the corresponding relation schematic diagram between the Hall value that above-mentioned angle and Hall element export.As shown in Figure 2, when above-mentioned angle is less than 180 °, the Hall value that Hall element exports increases along with the increase of above-mentioned angle.When above-mentioned angle is 180 °, the Hall value that Hall element exports reaches maximal value.After above-mentioned angle is more than 180 °, the Hall value that Hall element exports reduces along with the increase of above-mentioned angle.
In the embodiment of the present invention, first threshold is the maximal value of the Hall value that Hall element exports, the Hall value that when namely above-mentioned angle is 180 °, Hall element exports.Second Threshold is above-mentioned angle when reaching maximal value, the Hall value that Hall element exports.Because each mobile terminal exists individual difference, the first threshold of each mobile terminal and Second Threshold specifically can be obtained by many experiments before dispatching from the factory.
In the embodiment of the present invention, when rotate instruction being detected by curved sides screen, the angle between rotary module and mobile terminal main body is called initial angle, and the Hall value that now Hall element exports is called initial Hall value.In the embodiment that some are feasible, the basis of initial angle rotates according to the sense of rotation determined, when above-mentioned angle reaches maximal value, the angle of the actual rotation of rotary module is less than the anglec of rotation determined according to rotate instruction, the motor rotated for driven rotary module in prior art still can continue to run, so that motor dallies or stall.
In the embodiment of the present invention, the Hall value exported when described Hall element is from after initial Hall value increases to first threshold, when being reduced to Second Threshold again, illustrate that the angle between rotary module and mobile terminal main body reaches maximal value, then control described motor out of service, motor can be avoided to dally or stall.
S308, be when being reduced to the 3rd threshold value from described initial Hall value in the variation tendency of the Hall value that described Hall element exports, control described motor in the described rotating camera of drive to out of service after described sense of rotation continues rotation first angle.
See also Fig. 2, as shown in Figure 2, when angle between rotary module and mobile terminal main body is less, the Hall value that Hall element exports is not obvious with the change of above-mentioned angle, and the Hall value now exported according to Hall element judges that the angle between rotary module and mobile terminal main body may exist comparatively big error.
In the embodiment of the present invention, when the Hall value that Hall element exports is less than the 3rd threshold value, the angle accurately judged between rotary module and mobile terminal main body is difficult to according to Hall value, when the Hall value that Hall element exports equals the 3rd threshold value, judge that the angle between rotary module and mobile terminal main body is the first angle.Wherein, the occurrence of the 3rd threshold value and the first angle can be obtained by many experiments test before mobile terminal dispatches from the factory.Such as, through repeatedly testing, find when above-mentioned angle is less than 60 °, the change of Hall value is not obvious, and Hall value corresponding when above-mentioned angle is 60 ° is 10, then the 3rd threshold value can be set to 10, the first angle is set to 60 °.
In the embodiment that some are feasible, initial angle is there is between rotating camera and mobile terminal, user inputs instruction by the touch control bar that shields in curved sides slides, rotating camera to be adjusted to preposition or rearmounted, but user is difficult to the distance accurately controlling slip, makes rotating camera rotate on the contrary excessive.In the embodiment of the present invention, be when being reduced to the 3rd threshold value from described initial Hall value in the variation tendency of the Hall value that described Hall element exports, illustrate that the angle between rotary module and mobile terminal main body has been reduced to the first angle, motor drives described rotary module to after described sense of rotation continues rotation first angle, angle between rotary module and mobile terminal main body is 0, now rotating camera is just preposition or rearmounted, then motor can be controlled out of service, in order to avoid rotary module rotates excessively.
In the embodiment of the present invention, mobile terminal shows touch control bar by curved sides screen display, the distance of the direction that detection user slides on touch control bar and slip, distance according to the direction of sliding and slip determines sense of rotation and the anglec of rotation respectively, rotated to sense of rotation by motor driven rotary camera, and the Hall value that the Hall element detecting mobile terminal in real time exports, when the Hall value that Hall element exports does not change in Preset Time, or be from when being reduced to again Second Threshold after initial Hall value increases to first threshold in the variation tendency of Hall value that Hall element exports, illustrate that the angle between rotating camera place plane and mobile terminal main body reaches maximal value, the operation of motor cannot continue driven rotary camera and rotate, then control motor out of service, the heating that motor dallies or stall causes can be avoided, extend the serviceable life of motor and save the energy consumption of mobile terminal, the variation tendency of Hall value exported at Hall element is when being reduced to the 3rd threshold value from initial Hall value, illustrate that the angle between rotating camera and mobile terminal main body is just the first angle, control motor at driven rotary camera to out of service after the sense of rotation determined continues rotation first angle, rotating camera can be made just preposition or rearmounted, avoid rotating camera to rotate excessively, promote Consumer's Experience.
Refer to Fig. 4, Fig. 4 is an example structure schematic diagram of the mobile terminal that the embodiment of the present invention provides.The mobile terminal of the embodiment of the present invention can be mobile phone, panel computer, PC or other there is the mobile terminal of rotating camera.As shown in Figure 4, described mobile terminal can comprise:
Instruction detection unit 401, for being detected the rotate instruction of user's input by the curved sides screen of mobile terminal, according to the described rotate instruction determination anglec of rotation and sense of rotation.
In concrete enforcement, mobile terminal detects the slide of user by curved sides screen, and generates rotate instruction according to this slide.
As a kind of feasible embodiment, mobile terminal can to slide control strip in curved sides screen display one, the distance of the direction that detection user slides on this slip control strip and slip, and determine sense of rotation according to the direction of sliding, according to the distance determination anglec of rotation of sliding
Wherein, above-mentioned sense of rotation is the sense of rotation of the rotating camera determined according to the instruction of user, such as clockwise direction or counterclockwise.The above-mentioned anglec of rotation is the angle that the rotating camera determined according to the instruction of user needs to rotate.In concrete enforcement, the above-mentioned anglec of rotation can not be equal to the angle of the actual rotation of rotating camera.
First control module 402, for being driven described rotating camera to rotate to described sense of rotation by motor, and the Hall value that the Hall element detecting mobile terminal in real time exports.
In concrete enforcement, motor is rotated by gear drive driven rotary camera, and the number of teeth turned over by controlling motor controls the anglec of rotation of rotating camera.
As a kind of feasible embodiment, rotating camera can be placed on a rotary module, and this rotary module is connected with mobile terminal main body by least one turning axle, and can rotate around this turning axle.This rotary module side is equipped with magnet, and body is provided with Hall element near the position of this rotary module side.In concrete enforcement, the gear drive driven rotary module of motor rotates, and the rotating camera on rotary module and magnet are and then rotated.In rotary course, the distance of magnet and Hall element changes, and the Hall value that Hall element is detected changes.
As a kind of feasible embodiment, after mobile terminal detects the rotate instruction that user inputs, just control motor and start to rotate, the Hall value of Real-Time Monitoring Hall element output simultaneously.
Second control module 403, be from when being reduced to again Second Threshold after initial Hall value increases to first threshold for the variation tendency of the Hall value exported at described Hall element, control described motor out of service, wherein said initial Hall value is the Hall value that when receiving described rotate instruction, described Hall element exports.
In concrete enforcement, form angle between rotary module and mobile terminal main body, due to reasons such as structural designs, the maximal value of this angle is less than 360 °.In the embodiment that some are feasible, the rotation of rotary module makes above-mentioned angle increase, and when above-mentioned angle has reached maximal value, also cannot driven rotary module rotate even if motor is rotated further.
Seeing also Fig. 2, is the corresponding relation schematic diagram between the Hall value that above-mentioned angle and Hall element export.As shown in Figure 2, when above-mentioned angle is less than 180 °, the Hall value that Hall element exports increases along with the increase of above-mentioned angle.When above-mentioned angle is 180 °, the Hall value that Hall element exports reaches maximal value.After above-mentioned angle is more than 180 °, the Hall value that Hall element exports reduces along with the increase of above-mentioned angle.
In the embodiment of the present invention, first threshold is the maximal value of the Hall value that Hall element exports, the Hall value that when namely above-mentioned angle is 180 °, Hall element exports.Second Threshold is above-mentioned angle when reaching maximal value, the Hall value that Hall element exports.Because each mobile terminal exists individual difference, the first threshold of each mobile terminal and Second Threshold specifically can be obtained by many experiments before dispatching from the factory.
In the embodiment of the present invention, when the rotate instruction that user inputs being detected, the angle between rotary module and mobile terminal main body is called initial angle, and the Hall value that now Hall element exports is called initial Hall value.In the embodiment that some are feasible, the basis of initial angle rotates according to the sense of rotation determined, when above-mentioned angle reaches maximal value, the angle of the actual rotation of rotary module is less than the anglec of rotation determined according to rotate instruction, the motor rotated for driven rotary module in prior art still can continue to run, so that motor dallies or stall.
In the embodiment of the present invention, the Hall value exported when described Hall element is from after initial Hall value increases to first threshold, when being reduced to Second Threshold again, illustrate that the angle between rotary module and mobile terminal main body reaches maximal value, then control described motor out of service, motor can be avoided to dally or stall.
In the embodiment that some are feasible, if Hall value (such as in 200ms) within a period of time does not change, and motor is still in operation, then illustrate that the operation of motor cannot rotate by driven rotary camera, now can control motor out of service, dally or stall to avoid motor.
In the embodiment of the present invention, mobile terminal detects the rotate instruction of user's input, according to the rotate instruction determination anglec of rotation and sense of rotation; Rotated to sense of rotation by motor driven rotary camera, and the Hall value that the Hall element detecting mobile terminal in real time exports; Be from when being reduced to again Second Threshold after initial Hall value increases to first threshold in the variation tendency of Hall value that Hall element exports, illustrate that the angle between rotating camera place plane and mobile terminal main body reaches maximal value, the operation of motor cannot continue driven rotary camera and rotate, then control motor out of service, motor can be avoided to dally or the heating that causes of stall, extend the serviceable life of motor and reduce the energy consumption of mobile terminal.
Refer to Fig. 5, Fig. 5 is another example structure schematic diagram of the mobile terminal that the embodiment of the present invention provides.The mobile terminal of the embodiment of the present invention can be mobile phone, panel computer, PC or other there is the mobile terminal of rotating camera.As shown in Figure 5, described mobile terminal can comprise:
Instruction detection unit 501, for being detected the rotate instruction of user's input by the curved sides screen of mobile terminal, according to the described rotate instruction determination anglec of rotation and sense of rotation.
In concrete enforcement, mobile terminal detects the slide of user by curved sides screen, and generates rotate instruction according to this slide.
As a kind of feasible embodiment, mobile terminal can to slide control strip in curved sides screen display one, the distance of the direction that detection user slides on this slip control strip and slip, and determine sense of rotation according to the direction of sliding, according to the distance determination anglec of rotation of sliding
Wherein, above-mentioned sense of rotation is the sense of rotation of the rotating camera determined according to the instruction of user, such as clockwise direction or counterclockwise.The above-mentioned anglec of rotation is the angle that the rotating camera determined according to the instruction of user needs to rotate.In concrete enforcement, the above-mentioned anglec of rotation can not be equal to the angle of the actual rotation of rotating camera.
In the embodiment that some are feasible, as shown in Figure 6, instruction detection unit 501 can comprise:
Display subelement 5011, for the curved sides screen display touch control bar at mobile terminal;
The mobile terminal of the embodiment of the present invention has curved sides screen, alternatively, can be single-curved surface side screen, also can be hyperboloid side screen.
As a kind of feasible embodiment, mobile terminal at curved sides screen display one touch control bar, can input instruction to make user by touch control bar.
Detection sub-unit 5012, for detecting the distance in direction that user slides on described touch control bar and slip.
As a kind of feasible embodiment, the direction that user slides on touch control bar comprises two contrary directions, such as, with rear, up and down or left and right etc. before.
In concrete enforcement, the distance that user slides can be less than or equal to the length of touch control bar.
First determines subelement 5013, for determining sense of rotation according to the direction of described slip.
Alternatively, glide direction can comprise contrary both direction, such as left and right, front and rear or up and down.Sense of rotation can comprise clockwise or counterclockwise.In concrete enforcement, mobile terminal can pre-set the corresponding relation between glide direction and sense of rotation.Such as, can to pre-set the left direction of glide direction corresponding with the clockwise direction of sense of rotation for mobile terminal.When user slides on the slip control strip that curved sides is shielded, determine that sense of rotation is clockwise direction left.Mobile terminal will be rotated in a clockwise direction by motor driven rotary camera.
Second determines subelement 5014, for the distance determination anglec of rotation according to described slip.
In the embodiment that some are feasible, according to the conversion rule preset, if the length of described touch control bar is H, described sliding distance is L, and the rotation range of described rotating camera is α, then the described anglec of rotation is β=α * L/H.
First control module 502, for being driven described rotating camera to rotate to described sense of rotation by motor, and the Hall value that the Hall element detecting mobile terminal in real time exports.
In concrete enforcement, motor is rotated by gear drive driven rotary camera, and the number of teeth turned over by controlling motor controls the anglec of rotation of rotating camera.
As a kind of feasible embodiment, rotating camera can be placed on a rotary module, and this rotary module is connected with mobile terminal main body by least one turning axle, and can rotate around this turning axle.This rotary module side is equipped with magnet, and body is provided with Hall element near the position of this rotary module side.In concrete enforcement, the gear drive driven rotary module of motor rotates, and the rotating camera on rotary module and magnet are and then rotated.In rotary course, the distance of magnet and Hall element changes, and the Hall value that Hall element is detected changes.
As a kind of feasible embodiment, after rotate instruction being detected by curved sides screen, mobile terminal just controls motor to start to rotate, simultaneously the Hall value that exports of Real-Time Monitoring Hall element.
Second control module 503, be from when being reduced to again Second Threshold after initial Hall value increases to first threshold for the variation tendency of the Hall value exported at described Hall element, control described motor out of service, wherein said initial Hall value is the Hall value that when receiving described rotate instruction, described Hall element exports.
In concrete enforcement, form angle between rotary module and mobile terminal main body, due to reasons such as structural designs, the maximal value of this angle is less than 360 °.In the embodiment that some are feasible, the rotation of rotary module makes above-mentioned angle increase, and when above-mentioned angle has reached maximal value, also cannot driven rotary module rotate even if motor is rotated further.
Seeing also Fig. 2, is the corresponding relation schematic diagram between the Hall value that above-mentioned angle and Hall element export.As shown in Figure 2, when above-mentioned angle is less than 180 °, the Hall value that Hall element exports increases along with the increase of above-mentioned angle.When above-mentioned angle is 180 °, the Hall value that Hall element exports reaches maximal value.After above-mentioned angle is more than 180 °, the Hall value that Hall element exports reduces along with the increase of above-mentioned angle.
In the embodiment of the present invention, first threshold is the maximal value of the Hall value that Hall element exports, the Hall value that when namely above-mentioned angle is 180 °, Hall element exports.Second Threshold is above-mentioned angle when reaching maximal value, the Hall value that Hall element exports.Because each mobile terminal exists individual difference, the first threshold of each mobile terminal and Second Threshold specifically can be obtained by many experiments before dispatching from the factory.
In the embodiment of the present invention, when rotate instruction being detected by curved sides screen, the angle between rotary module and mobile terminal main body is called initial angle, and the Hall value that now Hall element exports is called initial Hall value.In the embodiment that some are feasible, the basis of initial angle rotates according to the sense of rotation determined, when above-mentioned angle reaches maximal value, the angle of the actual rotation of rotary module is less than the anglec of rotation determined according to rotate instruction, the motor rotated for driven rotary module in prior art still can continue to run, so that motor dallies or stall.
In the embodiment of the present invention, the Hall value exported when described Hall element is from after initial Hall value increases to first threshold, when being reduced to Second Threshold again, illustrate that the angle between rotary module and mobile terminal main body reaches maximal value, then control described motor out of service, motor can be avoided to dally or stall.
3rd control module 504, variation tendency for the Hall value exported at described Hall element is when being reduced to the 3rd threshold value from described initial Hall value, controls described motor in the described rotating camera of drive to out of service after described sense of rotation continues rotation first angle.
See also Fig. 2, as shown in Figure 2, when angle between rotary module and mobile terminal main body is less, the Hall value that Hall element exports is not obvious with the change of above-mentioned angle, and the Hall value now exported according to Hall element judges that the angle between rotary module and mobile terminal main body may exist comparatively big error.
In the embodiment of the present invention, when the Hall value that Hall element exports is less than the 3rd threshold value, the angle accurately judged between rotary module and mobile terminal main body is difficult to according to Hall value, when the Hall value that Hall element exports equals the 3rd threshold value, judge that the angle between rotary module and mobile terminal main body is the first angle.Wherein, the occurrence of the 3rd threshold value and the first angle can be obtained by many experiments test before mobile terminal dispatches from the factory.Such as, through repeatedly testing, find when above-mentioned angle is less than 60 °, the change of Hall value is not obvious, and Hall value corresponding when above-mentioned angle is 60 ° is 10, then the 3rd threshold value can be set to 10, the first angle is set to 60 °.
In the embodiment that some are feasible, initial angle is there is between rotating camera and mobile terminal, user inputs instruction by the touch control bar that shields in curved sides slides, rotating camera to be adjusted to preposition or rearmounted, but user is difficult to the distance accurately controlling slip, makes rotating camera rotate on the contrary excessive.In the embodiment of the present invention, be when being reduced to the 3rd threshold value from described initial Hall value in the variation tendency of the Hall value that described Hall element exports, illustrate that the angle between rotary module and mobile terminal main body has been reduced to the first angle, motor drives described rotary module to after described sense of rotation continues rotation first angle, angle between rotary module and mobile terminal main body is 0, now rotating camera is just preposition or rearmounted, then motor can be controlled out of service, in order to avoid rotary module rotates excessively.
Judging unit 505, for driving described rotating camera to rotate to described sense of rotation at described first control module by motor, and when detecting the Hall value of Hall element output of mobile terminal in real time, judge whether the Hall value that described Hall element exports in Preset Time changes;
4th control module 506, for when the judged result of described judging unit is no, controls described motor out of service.
In the embodiment that some are feasible, if Hall value (such as in 200ms) within a period of time does not change, and motor is still in operation, then illustrate that the operation of motor cannot rotate by driven rotary camera, now can control motor out of service, dally or stall to avoid motor.
In the embodiment of the present invention, mobile terminal shows touch control bar by curved sides screen display, the distance of the direction that detection user slides on touch control bar and slip, distance according to the direction of sliding and slip determines sense of rotation and the anglec of rotation respectively, rotated to sense of rotation by motor driven rotary camera, and the Hall value that the Hall element detecting mobile terminal in real time exports, when the Hall value that Hall element exports does not change in Preset Time, or be from when being reduced to again Second Threshold after initial Hall value increases to first threshold in the variation tendency of Hall value that Hall element exports, illustrate that the angle between rotating camera place plane and mobile terminal main body reaches maximal value, the operation of motor cannot continue driven rotary camera and rotate, then control motor out of service, the heating that motor dallies or stall causes can be avoided, extend the serviceable life of motor and save the energy consumption of mobile terminal, the variation tendency of Hall value exported at Hall element is when being reduced to the 3rd threshold value from initial Hall value, illustrate that the angle between rotating camera and mobile terminal main body is just the first angle, control motor at driven rotary camera to out of service after the sense of rotation determined continues rotation first angle, rotating camera can be made just preposition or rearmounted, avoid rotating camera to rotate excessively, promote Consumer's Experience.
Device embodiment described above is only schematic, the wherein said unit illustrated as separating component or can may not be and physically separates, parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of module wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.Those of ordinary skill in the art, when not paying performing creative labour, are namely appreciated that and implement.
Step in embodiment of the present invention method can be carried out order according to actual needs and be adjusted, merges and delete.
Module in embodiment of the present invention device or unit can carry out merging, divide and deleting according to actual needs.
The module of the embodiment of the present invention or module, with universal integrated circuit (as central processor CPU), or can realize with special IC (ASIC).
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that each embodiment can add required general hardware platform by software and realize, and can certainly pass through hardware.Based on such understanding, technique scheme can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product can store in a computer-readable storage medium, as ROM/RAM, magnetic disc, CD etc., comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform the method described in some part of each embodiment or embodiment.
Above-described embodiment, does not form the restriction to this technical scheme protection domain.The amendment done within any spirit at above-mentioned embodiment and principle, equivalently to replace and improvement etc., within the protection domain that all should be included in this technical scheme.
Claims (10)
1. a control method for rotating camera, is characterized in that, comprising:
The rotate instruction of user's input is detected, according to the described rotate instruction determination anglec of rotation and sense of rotation by the curved sides screen of mobile terminal;
Described rotating camera is driven to rotate to described sense of rotation by motor, and the Hall value that the Hall element detecting mobile terminal in real time exports;
Be from when being reduced to again Second Threshold after initial Hall value increases to first threshold in the variation tendency of the Hall value that described Hall element exports, control described motor out of service, wherein said initial Hall value is the Hall value that when receiving described rotate instruction, described Hall element exports.
2. control method according to claim 1, is characterized in that,
The described screen of the curved sides by mobile terminal detects the rotate instruction of user's input, comprising:
At the curved sides screen display touch control bar of mobile terminal;
The distance of the direction that detection user slides on described touch control bar and slip;
Described according to the described rotate instruction determination anglec of rotation and sense of rotation, comprising:
Sense of rotation is determined in direction according to described slip;
According to the distance determination anglec of rotation of described slip.
3. control method according to claim 2, is characterized in that, the described distance determination anglec of rotation according to described slip, is specially:
If the length of described touch control bar is H, described sliding distance is L, and the rotation range of described rotating camera is α, then determine that the described anglec of rotation is β=α * L/H.
4. control method according to claim 1, is characterized in that, described control method also comprises:
Be when being reduced to the 3rd threshold value from described initial Hall value in the variation tendency of the Hall value that described Hall element exports, control described motor in the described rotating camera of drive to out of service after described sense of rotation continues rotation first angle.
5. control method according to claim 1, is characterized in that, describedly drives described rotating camera to rotate to described sense of rotation by motor, and the Hall element detecting mobile terminal in real time export Hall value time, described control method also comprises:
Judge whether the Hall value that described Hall element exports in Preset Time changes, if judged result is no, then controls described motor out of service.
6. a mobile terminal, is characterized in that, described mobile terminal comprises rotating camera, also comprises:
Instruction detection unit, for being detected the rotate instruction of user's input by the curved sides screen of mobile terminal, according to the described rotate instruction determination anglec of rotation and sense of rotation;
First control module, for being driven described rotating camera to rotate to described sense of rotation by motor, and the Hall value that the Hall element detecting mobile terminal in real time exports;
Second control module, be from when being reduced to again Second Threshold after initial Hall value increases to first threshold for the variation tendency of the Hall value exported at described Hall element, control described motor out of service, wherein said initial Hall value is the Hall value that when receiving described rotate instruction, described Hall element exports.
7. mobile terminal according to claim 6, is characterized in that, described instruction detection unit, comprising:
Display subelement, for the curved sides screen display touch control bar at mobile terminal;
Detection sub-unit, for detecting the distance in direction that user slides on described touch control bar and slip;
First determines subelement, for determining sense of rotation according to the direction of described slip;
Second determines subelement, for the distance determination anglec of rotation according to described slip.
8. mobile terminal according to claim 7, is characterized in that, described second determines subelement, specifically for:
When the length of described touch control bar is H, described sliding distance is L, when the rotation range of described rotating camera is α, determines that the described anglec of rotation is β=α * L/H.
9. mobile terminal according to claim 6, is characterized in that, described mobile terminal also comprises:
3rd control module, variation tendency for the Hall value exported at described Hall element is when being reduced to the 3rd threshold value from described initial Hall value, controls described motor in the described rotating camera of drive to out of service after described sense of rotation continues rotation first angle.
10. mobile terminal according to claim 6, is characterized in that, described mobile terminal also comprises:
Judging unit, for driving described rotating camera to rotate to described sense of rotation at described first control module by motor, and when detecting the Hall value of Hall element output of mobile terminal in real time, judge whether the Hall value that described Hall element exports in Preset Time changes;
4th control module, for when the judged result of described judging unit is no, controls described motor out of service.
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| CN201510332468.5A CN104950918A (en) | 2015-06-16 | 2015-06-16 | Control method for rotary camera and mobile terminal |
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| CN201510332468.5A CN104950918A (en) | 2015-06-16 | 2015-06-16 | Control method for rotary camera and mobile terminal |
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Application publication date: 20150930 |