CN101257532B - Method for automatically adjusting optimum view angle and mobile hand-hold equipment - Google Patents

Method for automatically adjusting optimum view angle and mobile hand-hold equipment Download PDF

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Publication number
CN101257532B
CN101257532B CN2008100270151A CN200810027015A CN101257532B CN 101257532 B CN101257532 B CN 101257532B CN 2008100270151 A CN2008100270151 A CN 2008100270151A CN 200810027015 A CN200810027015 A CN 200810027015A CN 101257532 B CN101257532 B CN 101257532B
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current
optimal viewing
viewing angle
angle
component
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CN101257532A (en
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张建松
张伟
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Shenzhen Transsion Holdings Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Abstract

The invention discloses a method for voluntary adjustment to optimum view angle, comprising detecting currently each axis component of accelerated velocity; analyzing above axis component of accelerated velocity to obtain screen switch instruction information; switching the screen to currently optimum view angle according to the screen switch instruction information. The embodiment of this invention also provides a mobile hand held device including an accelerated velocity detection unit used for detecting each axis component of the accelerated velocity; an accelerated velocity analyzing unit used for analyzing each axis component of the accelerated velocity to obtain screen switch instruction information; and a switch unit used for switching the screen to currently optimum view angle according to the screen switch instruction information. Due to the detection and analysis of the mobile hand held device to each axis component of the accelerated velocity, the screen switch instruction information is obtained to realize to switch the screen to currently optimum view angle. The mobile hand held device does not need a continuous key set to switch screen display and can realize voluntary adjustment to optimum view angle.

Description

A kind of method of automatic adjustment optimal viewing angle and mobile hand-held device
Technical field
The present invention relates to field of mobile communication, relate in particular to a kind of method and mobile hand-held device of automatic adjustment optimal viewing angle.
Background technology
Along with to the multi-functional needs of mobile hand-held device, mobile hand-held device requires to satisfy GPS (Global Positioning System, global positioning system) at present, looks screen is play and function such as recreation.Because the screen of mobile hand-held device is narrow and small, has only continuous switching and moving image, reaches optimal viewing angle.Existing mobile hand-held device has only the shake-up button through repeating, and stirs the scroll key that can move up and down or changes the direction of holding mobile hand-held device and realize.Such mode, the reflection time of mobile hand-held device is long, and operation is also very inconvenient.Especially be difficult to operation especially for the elderly who is unfamiliar with mobile hand-held device, old weak person and physical handicaps person.
Summary of the invention
Technical problem to be solved by this invention is, a kind of method and mobile hand-held device of automatic adjustment optimal viewing angle is provided, and can adjust screen automatically and switch to current optimal viewing angle.
In order to solve the problems of the technologies described above, embodiments of the invention provide a kind of method of automatic adjustment optimal viewing angle, comprising:
Detect each component of current acceleration;
Analyze each component of said current acceleration, obtain the screen indication message;
According to the screen indication message, screen display is switched to current optimal viewing angle.
Embodiments of the invention also provide a kind of mobile hand-held device, comprising:
Acceleration detecting unit is used for each component of sense acceleration;
The acceleration analysis unit is used to analyze each component of said acceleration, obtains the screen indication message;
Switch unit is used for the visual angle handover information, and screen display is switched to current optimal viewing angle.
Owing to each component detection of mobile hand-held device current acceleration and analysis, obtain the screen switching signal, thereby realize that screen switches to current optimal viewing angle.Mobile hand-held device does not need continuous button to come toggle screen to show, can realize adjusting automatically screen display to optimal viewing angle.
Description of drawings
Fig. 1 is the structured flowchart of embodiment of the invention mobile hand-held device;
Fig. 2 is the flow chart that the present invention adjusts the method for optimal viewing angle automatically.
Embodiment
With reference to accompanying drawing the preferred embodiments of the present invention are described below.In the accompanying drawing of institute's reference, same or analogous parts use identical drawing reference numeral to represent among the different figure.
Referring to Fig. 1, be the structured flowchart of embodiment of the invention mobile hand-held device.The embodiment of the invention provides a kind of mobile hand-held device 1, comprising:
Acceleration detecting unit 10 is used to detect each component of current acceleration;
Acceleration analysis unit 20 is used to analyze each component of said current acceleration, obtains the screen indication message;
Switch unit 30 is used for according to said screen indication message screen display being switched to current optimal viewing angle.
In the embodiment of the invention,, mobile hand-held device 1 current acceleration information is detected and analyzes, obtain screen and switch index signal, thereby realize that screen switches to current optimal viewing angle owing to be provided with acceleration analysis unit 20.Mobile hand-held device 1 does not need continuous button to come toggle screen to show, can realize adjusting automatically screen display to optimal viewing angle.
In the present embodiment, acceleration analysis unit 20 comprises:
Accept unit 21, be used to obtain automatic adjustment optimal viewing angle order.
Timing unit 22 is used for regularly carrying out adjustment optimal viewing angle order automatically.
The axial angle of acceleration of gravity obtains 23, is used to analyze each component of said current acceleration, obtains the axial angle of said mobile hand-held device and acceleration of gravity;
Current optimal viewing angle acquiring unit 24 is used to analyze the axial angle of acceleration of gravity, obtains said current optimal viewing angle.
Each component filter element 25 of acceleration is used for that each component of said current acceleration is carried out interference signal and filters.
Optimal viewing angle judging unit 26, be used to judge said current optimal viewing angle with last time optimal viewing angle whether identical;
Screen indication message transmitting element 27 is used for when not, said current optimal viewing angle being sent to switch unit 30 as said screen indication message;
Each PCA unit 28 of earth magnetism is used for when being, according to each component of current earth magnetism, obtains said screen indication message.
Wherein, screen indication message transmitting element 27 comprises:
Earth magnetism detecting unit 271 is used to detect said each component of current earth magnetism.
Magnetic north angle acquiring unit 272 is used to analyze each component of current earth magnetism, obtains the angle of said mobile hand-held device and current magnetic north.
Wherein, magnetic north angle acquiring unit 272 also can comprise: temperature sensor 2721, be used for detected temperatures, and said each component of current earth magnetism is carried out temperature-compensating.
The magnetic north angle is preserved unit 273, is used to preserve current magnetic north angle.
In the present embodiment, each PCA unit 28 of earth magnetism comprises:
Earth magnetism detecting unit 281 is used to detect said each component of current earth magnetism;
Magnetic north angle acquiring unit 282 is used to analyze said each component of current earth magnetism, obtains the angle of said mobile hand-held device and magnetic north;
Wherein, magnetic north angle acquiring unit 282 also can comprise: temperature sensor 2821, be used for detected temperatures, and said each component of current earth magnetism is carried out temperature-compensating.
Magnetic north angle judging unit 283, be used to judge said current magnetic north angle and last time the magnetic north angle difference whether reach certain threshold value;
Current optimal viewing angle updating block 284 is used for when being, upgrades said current optimal viewing angle according to the difference of said magnetic north angle;
Screen indication message transmitting element 285 is used for the current optimal viewing angle after upgrading is sent to switch unit 30 as said screen indication message;
The magnetic north angle is preserved unit 286, is used to preserve current magnetic north angle.
Referring to Fig. 2, adjust the flow chart of the method for optimal viewing angle automatically for the present invention.Embodiments of the invention also provide a kind of method of automatic adjustment optimal viewing angle, the step below corresponding above-mentioned each construction unit of this method is carried out:
Step S201 obtains automatic adjustment optimal viewing angle order;
The user operates mobile hand-held device, and input is the order of adjustment optimal viewing angle automatically, mobile hand-held device 1 accept the order that unit 21 receives automatic adjustment optimal viewing angle.The user can be through the button of operation on the mobile hand-held device 1, and perhaps input equipment such as touch screen comes input command.
Step S202 detects each component of current acceleration;
Utilize acceleration detecting unit 10 to detect said current each the component of acceleration of mobile hand-held devices 1.When the spatial attitude run-off the straight of mobile hand-held device 1, the acceleration on each of mobile hand-held device 1 changes, and acceleration detecting unit 10 can detect the said component of acceleration on each.Said current each component of acceleration, reflection be the acceleration information of mobile hand-held device 1.Acceleration detecting unit 10 can utilize resistance change, or capacitance variations, or mode such as piezoelectricity variation detects.
Step S203 carries out interference signal to each component of said current acceleration and filters;
In the present embodiment, utilize 25 pairs of acceleration detecting units of each component filter element of acceleration, 10 detected each component of said acceleration to carry out Filtering Processing, the filtering interfering component.These disturb mainly is the interference signal that other devices in the mobile hand-held device 1 produce, and the user walks about or reason such as riding public transportation means produces in the mobile hand-held device use.
Step S204 analyzes each component of said current acceleration, obtains the axial angle of said mobile hand-held device and acceleration of gravity;
Utilize the axial angle of acceleration of gravity to obtain 23, analyze each component of said current acceleration, obtain the axial angle of said mobile hand-held device and acceleration of gravity.
Step S205 analyzes the axial angle of acceleration of gravity, obtains said current optimal viewing angle;
Here introduce a θ value, the angle value of said θ value for setting.When the angle of mobile hand-held device 1 and horizontal plane during, utilize and analyze each component of said current acceleration and obtain said current nearest visual angle greater than θ.When the angle of mobile hand-held device 1 and horizontal plane during, utilize and analyze said each component of current earth magnetism and upgrade said current optimal viewing angle less than θ.
Usually when mobile hand-held device 1 was in horizontal plane fully, acceleration detecting unit 20 can't detect each component of said acceleration, thereby can't detection place mobile hand-held device 1 current spatial attitude accurately.Have only through earth magnetism detecting unit 261 and detect each component of earth magnetism, thereby obtain mobile hand-held device 1 present space attitude, further upgrade said current optimal viewing angle, obtain said screen indication message.When mobile hand-held device 1 during near horizontal plane; Though this moment, acceleration detecting unit 20 can detect each component of said acceleration; But because acceleration detecting unit 20 sensitivity at this moment at this moment is relatively poor, each component error of detected said acceleration is bigger.Therefore can detect said accurately each component of acceleration in order to ensure acceleration detecting unit 20; Obtain mobile hand-held device 1 current spatial attitude accurately; Setting when mobile hand-held device 1 during greater than θ, utilizes each component of the said current acceleration of analysis to obtain said current nearest visual angle with horizontal plane angle.In the present embodiment, θ is set at 30 ° to 45 °.
Introduce an acceleration rate threshold again, said acceleration rate threshold is the size of the acceleration of gravity axial component that obtains during for θ when the axial angle of acceleration of gravity.When judging mobile hand-held device 1 and horizontal plane angle whether greater than θ, utilize current optimal viewing angle acquiring unit 24, whether each component of said current acceleration and said acceleration rate threshold relatively can be drawn each and the axial angle of acceleration of gravity greater than θ.Obtain the axial angle of said acceleration of gravity, can obtain mobile hand-held device 1 present space attitude, thereby obtain said current optimal viewing angle.
When the angle of mobile hand-held device 1 and horizontal plane during, just can't obtain said current optimal viewing angle less than θ.
Step S206, judge said current optimal viewing angle with last time optimal viewing angle whether identical;
Utilize optimal viewing angle judging unit 26 judge said current optimal viewing angle with last time optimal viewing angle whether identical.When mobile hand-held device 1 start back was judged for the first time, the optimal viewing angle and the current optimal viewing angle that have an acquiescence compared.In the present embodiment, optimal viewing angle is the value of several settings.For example, optimal viewing angle is made as 0 °, 90 °, 180 °, sets when same plane corner is 0 ° to 45 °, current optimal viewing angle is 0 °, sets when same plane corner is 45 ° to 90 °, and current optimal viewing angle is 90 °.That is to say that when at grade, when original optimal viewing angle is 0 °, forward 30 ° at this moment, current optimal viewing angle still is 0 °; If forward 60 ° to, current optimal viewing angle then is 90 °.During according to design, to mobile hand-held device 1 different requirement, optimal viewing angle can also be set at other arbitrarily angled value.
Step S207 when not, sends to switch unit 30 with said current optimal viewing angle as said screen indication message;
Utilize screen indication message transmitting element 27, said current optimal viewing angle is sent to switch unit 30 as said screen indication message.
Step S208 detects said each component of current earth magnetism;
Utilize earth magnetism detecting unit 271, detect each component of earth magnetism, each component of earth magnetism is the geomagnetic field component of magnetic field sensor on each.
Step S209 analyzes each component of current earth magnetism, obtains the angle of said mobile hand-held device and current magnetic north;
Utilize magnetic north angle acquiring unit 272, obtain the angle of said mobile hand-held device and current magnetic north.
Analyzing but during each component of preceding earth magnetism, temperature sensor 2721 capable of using detects Current Temperatures, and said each component of current earth magnetism is carried out temperature-compensating.
Step S210 preserves current magnetic north angle;
Utilize the magnetic north angle to preserve unit 273, preserve said current magnetic north angle.
Here; Step S208, S209 and S210; Obtaining the screen handover information with this has nothing to do; But its objective is in order to prepare, when next time mobile hand-held device 1, can extract magnetic north angle last time of preservation and do comparison during less than θ with horizontal plane angle for obtain the screen handover information next time.
Step S211 when being, detects said each component of current earth magnetism;
Utilize earth magnetism detecting unit 281 to detect.Being judged as when being, two kinds of situation are arranged.First kind of situation is to utilize each component of said acceleration to obtain said current optimal viewing angle, but because the angle that changes is less, said current optimal viewing angle with last time optimal viewing angle identical.Can not obtain said current optimal viewing angle during second kind of situation, current optimal viewing angle can't upgrade, and the current optimal viewing angle during judgement is actually optimal viewing angle last time.
Step S212 analyzes said each component of current earth magnetism, obtains the angle of said mobile hand-held device and magnetic north;
Utilize magnetic north angle acquiring unit 282 to analyze.When analyzing each component of current earth magnetism, temperature sensor 2821 capable of using detects Current Temperatures, and said each component of current earth magnetism is carried out temperature-compensating.
Step S213, judge said current magnetic north angle and last time the magnetic north angle difference whether reach certain threshold value;
Utilize magnetic north angle judging unit 283 to judge.When judging the difference of magnetic north angle the first time after mobile hand-held device 1 start, have the magnetic north angle and the said current magnetic north angle contrast of an acquiescence.
Threshold value described herein is a critical angle of setting.When the angle that mobile hand-held device 1 rotates, in the time of in certain said threshold range, the rotation of mobile hand-held device 1 watches screen display not exert an influence for the user at this moment.After greater than certain threshold value, the rotation of mobile hand-held device 1 watches screen display to produce influence to the user at this moment, need switch to new optimal viewing angle.Therefore need whether reach certain said threshold value through the difference of judging said magnetic north angle, determine whether that toggle screen shows.In the present embodiment, said threshold value can be set according to the different qualities of mobile hand-held device 1.For example, be the screen of 2:1 for Aspect Ratio, when the user when length direction holds mobile hand-held device 1 and watches screen, when the needs rotating screen.From the angle of ergonomics, according to the general custom of watching, be made as 30 ° with said threshold value this moment, and when the screen anglec of rotation during greater than 30 °, picture switches to horizontal screen and shows.And be 7: 5 screen for Aspect Ratio, possibly said threshold value be set to 60 °, when screen corner during, just need picture to switch to horizontal screen and show greater than 60 °.The setting of said threshold value makes the automatic adjustment optimal viewing angle of mobile hand-held device 1 humanized.
Step S214 when being, upgrades said current optimal viewing angle according to the difference of said magnetic north angle;
Utilize current optimal viewing angle updating block 284 to upgrade said current optimal viewing angle.
Step S215 sends to switch unit 30 with the current optimal viewing angle after upgrading as said screen indication message;
Utilize the current optimal viewing angle after screen indication message transmitting element 285 will upgrade to send to switch unit 30 as said screen indication message.
Step S216 preserves current magnetic north angle;
Utilizing the magnetic north angle to preserve unit 286 preserves.
Step S217 according to said screen indication message, switches to current optimal viewing angle with screen display;
Utilize switch unit 30 to come toggle screen to be shown as current optimal viewing angle.
Arrive this; For adjusting the implementation of a completion of optimal viewing angle automatically; Step S201 can also comprise the step of regularly carrying out the order of automatic adjustment optimal viewing angle; Utilize timing unit 22 to make mobile hand-held device 1 section at regular intervals, send and carry out adjustment optimal viewing angle order automatically, accomplish a process of switching optimal viewing angle.
The method of above-mentioned automatic adjustment optimal viewing angle and mobile hand-held device can detect each component of acceleration and each component of earth magnetism through acceleration detecting unit 10 or earth magnetism detecting unit 281.Obtain current optimal viewing angle through 20 pairs of each components of acceleration in acceleration analysis unit and each component analysis of earth magnetism again, obtain more accurate and the said screen handover information of optimization.According to the screen handover information, switch to optimal viewing angle at last, satisfy the needs of people automatic adjustment optimal viewing angle.
The above is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also are regarded as protection scope of the present invention.

Claims (10)

1. automatic method of adjustment optimal viewing angle, it comprises the steps:
Detect each component of current acceleration;
Analyze each component of said current acceleration, obtain the screen indication message;
According to said screen indication message, screen display is switched to current optimal viewing angle.
2. the method for automatic adjustment optimal viewing angle according to claim 1 is characterized in that, said each component of analysis current acceleration, and the step that obtains the screen indication message comprises:
Analyze each component of said current acceleration, obtain the axial angle of said mobile hand-held device and acceleration of gravity;
Analyze the axial angle of acceleration of gravity, obtain said current optimal viewing angle.
Judge said current optimal viewing angle with last time optimal viewing angle whether identical;
When not, said current optimal viewing angle is sent to switch unit as said screen indication message;
When being,, obtain said screen indication message according to each component of current earth magnetism.
3. the method for automatic adjustment optimal viewing angle according to claim 2 is characterized in that, each component of the said current acceleration of said analysis, and the step that obtains the screen indication message also comprises:
Each component of said current acceleration is carried out interference signal to be filtered.
4. the method for automatic adjustment optimal viewing angle according to claim 2 is characterized in that, said according to each component of current earth magnetism, the step that obtains said screen indication message comprises:
Detect each component of current earth magnetism;
Analyze said each component of current earth magnetism, obtain the angle of said mobile hand-held device and magnetic north;
Judge said current magnetic north angle and last time the magnetic north angle difference whether reach certain threshold value;
When being, upgrade said current optimal viewing angle according to the difference of said magnetic north angle;
Current optimal viewing angle after upgrading is sent to said switch unit as said screen indication message.
5. the method for automatic adjustment optimal viewing angle according to claim 4 is characterized in that, said according to each component of current earth magnetism, the step that obtains said screen indication message also comprises:
Preserve current magnetic north angle.
6. the method for automatic adjustment optimal viewing angle according to claim 2 is characterized in that, said said current optimal viewing angle is also comprised as the step that said screen indication message sends to switch unit:
Detect said each component of current earth magnetism;
Analyze each component of current earth magnetism, obtain the angle of said mobile hand-held device and current magnetic north;
Preserve current magnetic north angle.
7. according to the method for claim 4 or 6 described automatic adjustment optimal viewing angles, it is characterized in that the step of current each component of earth magnetism of said analysis also comprises: said each component of current earth magnetism is carried out temperature-compensating.
8. a mobile hand-held device is characterized in that, comprising:
Acceleration detecting unit is used to detect each component of current acceleration;
The acceleration analysis unit is used to analyze each component of said current acceleration, obtains the screen indication message;
Switch unit is used for according to said screen indication message screen display being switched to current optimal viewing angle.
9. mobile hand-held device according to claim 8 is characterized in that, said acceleration analysis unit comprises:
The axial angle acquiring unit of acceleration of gravity is used to analyze each component of said current acceleration, obtains the axial angle of said mobile hand-held device and acceleration of gravity;
Current optimal viewing angle acquiring unit is used to analyze the axial angle of acceleration of gravity, obtains said current optimal viewing angle;
The optimal viewing angle judging unit, be used to judge said current optimal viewing angle with last time optimal viewing angle whether identical;
Screen indication message transmitting element is used for when not, said current optimal viewing angle being sent to said switch unit as said screen indication message;
Each PCA unit of earth magnetism is used for when being, according to each component of current earth magnetism, obtains said screen indication message.
10. mobile hand-held device according to claim 9 is characterized in that, each PCA unit of said earth magnetism comprises:
The earth magnetism detecting unit is used to detect said each component of current earth magnetism;
Magnetic north angle acquiring unit is used to analyze said each component of current earth magnetism, obtains the angle of said mobile hand-held device and magnetic north;
Magnetic north angle judging unit, be used to judge said current magnetic north angle and last time the magnetic north angle difference whether reach certain threshold value;
Current optimal viewing angle updating block is used for when being, upgrades said current optimal viewing angle according to the difference of said magnetic north angle;
Screen indication message transmitting element is used for the current optimal viewing angle after upgrading is sent to said switch unit as said screen indication message.
CN2008100270151A 2008-03-26 2008-03-26 Method for automatically adjusting optimum view angle and mobile hand-hold equipment Active CN101257532B (en)

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Patentee before: Yulong Computer and Communication Sci. & Tech. (Shenzhen) Co., Ltd.