CN105984410A - Method and device for automatic adjustment of angle of headrest display screen - Google Patents
Method and device for automatic adjustment of angle of headrest display screen Download PDFInfo
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- CN105984410A CN105984410A CN201510095890.3A CN201510095890A CN105984410A CN 105984410 A CN105984410 A CN 105984410A CN 201510095890 A CN201510095890 A CN 201510095890A CN 105984410 A CN105984410 A CN 105984410A
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- display screen
- angle
- regulation
- headrest display
- chair back
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Abstract
The invention provides a method and device for automatic adjustment of the angle of a headrest display screen. The method comprises the steps of detection, wherein the adjustment angle of a front-row chair back is detected; first-time adjustment, wherein the headrest display screen on the front-row chair back is adjusted for the first time relative to the front-row chair back according to the adjustment angle, so that the headrest display screen stays at an initial angle, and the initial angle is the angle, relative to the vertical plane, of the headrest display screen before adjustment of the front-row chair back; compensative adjustment, wherein the headrest display screen is subjected to compensative adjustment so that the plane where the headrest display screen is located after compensative adjustment is perpendicular to the sight of users on the back row watching the center of the screen. The headrest display screen can be adjusted automatically according to the angle of the chair back, so that the video watching comfort level of passengers on the back row is improved.
Description
Technical field
The present invention relates to a kind of vehicle seat headrest display screen, particularly relate to a kind of vehicle seat headrest display screen angle Automatic adjustment method and device.
Background technology
The back side in the headrest portion of the most a lot of vehicle seats can arrange display screen, and the passenger for back row seats watches video.But the angle of current headrest display screen can not be automatically adjusted, when front passenger carries out the adjustment of angle of back-rest as required, the display screen at the back side in its headrest portion also can tilt the most therewith, affects the comfort level of rear passenger viewing video, if manually regulation certainly will inconvenience.
2014-02-19
Disclosed, the Chinese invention of Publication No. 103587485A proposes a kind of adjusting apparatus and the method for car-mounted terminal display screen, wherein said device includes: seat controller for adjusting the position of seat according to user operation, and is sent to angle adjuster by controlling bus by the positional information adjusting rear vehicle seat；Angle adjuster is for being adjusted the angles of display of car-mounted terminal display screen according to positional information；Light sensor is for obtaining the light information of car-mounted terminal display screen local environment, and sends light information to brightness controller；And brightness controller is after the angles of display adjusting car-mounted terminal display screen at angle adjuster, is adjusted the screen intensity of car-mounted terminal display screen according to light information.This invention improves visual effect when user uses car-mounted terminal, improve Consumer's Experience, but, after front-row seats is conditioned, the regulation angle of its display screen is by predetermined angle defined in manufacturer, this predetermined angle, owing to not taking into account because of the display screen height change caused by the change of front-row seats angle, therefore cannot fully eliminate chair angle and regulate the impact brought.
Summary of the invention
One of the technical problem to be solved in the present invention, is to provide a kind of headrest display screen angle Automatic adjustment method, and its headrest display screen can be adjusted automatically according to the angle of the chair back, with the comfort level of applicable rear passenger viewing video.
One of the technical problem to be solved in the present invention is achieved in that a kind of headrest display screen angle Automatic adjustment method, including
Detecting step, the regulation angle of the front-seat chair back of detection；
Regulating step first, according to described regulation angle, the chair back relatively front-seat to the headrest display screen on the described front-seat chair back regulates first, makes headrest display screen keep initial angle, before this initial angle refers to front-seat chair back regulation, the angle in headrest display screen opposed vertical face；
Compensate regulating step, described headrest display screen is compensated regulation, so that it is vertical with the sight line that heel row user watches screen center to compensate the headrest display screen place plane after regulation.
Further, described regulating step first is the regulation angle according to the described front-seat chair back and regulation direction, and described headrest display screen is carried out equal angular, rightabout regulation；The regulation direction of described compensation regulation is identical with the described regulation direction regulated first.
Further, if angle adjustment direction sign represents, and set the regulation angle of the front-seat chair back as α, headrest display screen longitudinal length is h, the distance of display screen of resting the head on the front-seat chair back before rear passenger and regulation is L1, rest the head on before and after the adjusting horizontal displacement of display screen of the front-seat chair back is L2, and the height of the front-seat chair back before adjustment is H1, and the height of the front-seat chair back after adjustment is H2；Then:
The described angle calculation that regulates first is: adjust angle beta=-α first；
The calculating detailed process of described compensation regulation angle γ is:
L2=H1*sinα
L=L1-L2
Therefore, L=L1-H1*sin α (formula 1)
Again by H2=H1*sin α
H=H1-H2
Therefore, H=H1-H1*sin α (formula 2)
Finally, tan γ=H/L
=(H1-H1*sin α)/(L1-H1*sin α) (formula 3)
The angle that human eye needs relative to display to offset can be obtained from formula 3, i.e. compensate regulation angle γ；
So headrest display screen needs the angle total amount rotated to be-(α+γ).
Further, when the chair back makes, relative to the angle of inclination of initial position, the viewing headrest display screen that back-seat passengers cannot be comfortable, described headrest display screen goes back automatically shrinking.
The two of the technical problem to be solved in the present invention, are to provide a kind of headrest display screen automatic angle adjusting device, and its headrest display screen can be adjusted automatically according to the angle of the chair back, with the comfort level of applicable rear passenger viewing video.
The two of the technical problem to be solved in the present invention are achieved in that a kind of headrest display screen automatic angle adjusting device, including
Detector unit, the regulation angle of the front-seat chair back of detection；
Regulate unit first, according to described regulation angle, the headrest display screen on the described front-seat chair back is regulated first, makes headrest display screen keep initial angle, before this initial angle refers to front-seat chair back regulation, the angle in headrest display screen opposed vertical face；
Compensate regulation unit, described headrest display screen is compensated regulation, so that it is vertical with the sight line that heel row user watches screen center to compensate the headrest display screen place plane after regulation.
Further, described detector unit includes angular transducer, MUX and AD conversion IC being sequentially connected with；Described angular transducer is located on the chair back；Regulation unit and compensation regulation unit include that the CPU being sequentially connected with, slider control control IC, motor and two slider control first；Two slider control connect the top and bottom of headrest display screen and respectively by described driven by motor, and described CPU is also connected with described AD conversion IC.
Present invention have the advantage that the headrest display screen of the present invention can be adjusted automatically according to the angle of the chair back, with the comfort level of applicable rear passenger viewing video.
Accompanying drawing explanation
The present invention is further illustrated the most in conjunction with the embodiments.
Fig. 1 is that the inventive method performs flow chart.
Fig. 2 is the inventive method Computing Principle schematic diagram.
Fig. 3 is that the present invention rests the head on the structured flowchart of display screen automatic angle adjusting device.
Fig. 4 is motor and the structural representation of two slider control in the present invention.
Detailed description of the invention
Refer to shown in Fig. 1, the headrest display screen angle Automatic adjustment method of the present invention, including
Detecting step, the regulation angle of the front-seat chair back of detection；
Regulating step first, according to described regulation angle, the chair back relatively front-seat to the headrest display screen on the described front-seat chair back regulates first, makes headrest display screen keep initial angle, before this initial angle refers to front-seat chair back regulation, the angle in headrest display screen opposed vertical face；Described regulating step first is the regulation angle according to the described front-seat chair back and regulation direction, and described headrest display screen is carried out equal angular, rightabout regulation.
Compensate regulating step, described headrest display screen is compensated regulation, so that it is vertical with the sight line that heel row user watches screen center to compensate the headrest display screen place plane after regulation；The regulation direction of described compensation regulation is identical with the described regulation direction regulated first.
Wherein, if as in figure 2 it is shown, angle adjustment direction sign represents, and set:
The regulation angle of the front-seat chair back 1 is α,
Headrest display screen 2 longitudinal length is h,
On front-seat chair back A before rear passenger and regulation, the distance of headrest display screen 2 is L1,
Before and after front-seat chair back adjustment, the horizontal displacement of headrest display screen 2 is L2,
The height of the front-seat chair back 1 before adjustment is H1,
The height of the front-seat chair back 1 after adjustment is H2；
Then:
The described angle calculation that regulates first is: adjust angle beta=-α first；
The calculating detailed process of described compensation regulation angle γ is:
L2=H1*sinα
L=L1-L2
Therefore, L=L1-H1*sin α (formula 1)
Again by H2=H1*sin α
H=H1-H2
Therefore, H=H1-H1*sin α (formula 2)
Finally, tan γ=H/L=
(H1-H1*sin α)/(L1-H1*sin α) (formula 3)
The angle that human eye needs relative to display to offset can be obtained from formula 3, i.e. compensate regulation angle γ；
So headrest display screen 2 needs angle total amount O rotated to be-(α+γ).
It addition, when the chair back makes, relative to the angle of inclination of initial position, the viewing headrest display screen 2 that back-seat passengers cannot be comfortable, described headrest display screen 2 goes back automatically shrinking.
The headrest display screen automatic angle adjusting device of the present invention, including
Detector unit, the regulation angle of the front-seat chair back of detection；
Regulate unit first, according to described regulation angle, the headrest display screen on the described front-seat chair back is regulated first, makes headrest display screen keep initial angle, before this initial angle refers to front-seat chair back regulation, the angle in headrest display screen opposed vertical face；
Compensate regulation unit, described headrest display screen is compensated regulation, so that it is vertical with the sight line that heel row user watches screen center to compensate the headrest display screen place plane after regulation.
As shown in Figure 3 and Figure 4, when the headrest display screen automatic angle adjusting device of the present invention implements, described detector unit includes angular transducer, MUX and AD conversion IC being sequentially connected with；Described angular transducer is located on the chair back；Described regulation unit first and compensation regulation unit include that the CPU being sequentially connected with, slider control control IC, motor 4 and two slider control 31(32)；Two slider control 31(32) connect the top and bottom of headrest display screen 2 respectively and driven by described motor 4, described CPU is also connected with described AD conversion IC.
When display screen of resting the head on follows front-seat back tilting, chosen whether to be automatically adjusted described headrest display screen by rear passenger, if, the angle of inclination of described headrest display screen is then detected by angular transducer, and first angle of inclination information is sent to MUX, analog signal output after being integrated by MUX, in AD conversion IC, exports I2C signal after AD conversion and sends to CPU；CPU receives the angle of inclination information that described angular transducer sends, judge size and the direction at angle of inclination, then the compensation regulation angle γ adjusting angle beta and required compensation regulation first of the required regulation of headrest display screen is calculated, further according to adjusting angle beta first and compensating regulation angle γ and calculate slider control and need to skid off length x, and send instruction and control IC to slider control；Described slider control control IC controls to be connected to the slider control of described headrest display screen upper end or lower end and slides under the drive of motor 4, to regulate the angle of inclination of described headrest display screen.
The direction at described angle of inclination represents with positive negative, when adjust first angle beta and compensate regulation angle γ be correction data time, and send instruction to slider control control IC, as shown in Figure 4, controlled IC by slider control again and drive motor 4, allow the slider control 31 being connected to described headrest display screen 2 lower end skid off length x；Otherwise when being negative data, allow the slider control 32 being connected to described headrest display screen 2 upper end skid off length x.When the chair back makes, relative to the angle of inclination of initial position, the viewing headrest display screen 2 that back-seat passengers cannot be comfortable, described headrest display screen 2 goes back automatically shrinking.
Although the foregoing describing the detailed description of the invention of the present invention; but those familiar with the art is to be understood that; we are merely exemplary described specific embodiment; rather than for the restriction to the scope of the present invention; those of ordinary skill in the art, in the equivalent modification made according to the spirit of the present invention and change, should be contained in the scope of the claimed protection of the present invention.
Claims (6)
1. a headrest display screen angle Automatic adjustment method, it is characterised in that: include
Detecting step, the regulation angle of the front-seat chair back of detection；
Regulating step first, according to described regulation angle, the chair back relatively front-seat to the headrest display screen on the described front-seat chair back regulates first, makes headrest display screen keep initial angle, before this initial angle refers to front-seat chair back regulation, the angle in headrest display screen opposed vertical face；
Compensate regulating step, described headrest display screen is compensated regulation, so that it is vertical with the sight line that heel row user watches screen center to compensate the headrest display screen place plane after regulation.
Headrest display screen angle Automatic adjustment method the most according to claim 1, it is characterised in that: described regulating step first is the regulation angle according to the described front-seat chair back and regulation direction, and described headrest display screen is carried out equal angular, rightabout regulation；The regulation direction of described compensation regulation is identical with the described regulation direction regulated first.
Headrest display screen angle Automatic adjustment method the most according to claim 1, it is characterised in that:
If angle adjustment direction sign represents, and set the regulation angle of the front-seat chair back as α, headrest display screen longitudinal length is h, the distance of display screen of resting the head on the front-seat chair back before rear passenger and regulation is L1, rest the head on before and after the adjusting horizontal displacement of display screen of the front-seat chair back is L2, the height of the front-seat chair back before adjustment is H1, and the height of the front-seat chair back after adjustment is H2；Then:
The described angle calculation that regulates first is: adjust angle beta=-α first；
The calculating detailed process of described compensation regulation angle γ is:
L2=H1*sinα
L=L1-L2
Therefore, L=L1-H1*sin α (formula 1)
Again by H2=H1*sin α
H=H1-H2
Therefore, H=H1-H1*sin α (formula 2)
Finally, tan γ=H/L=(H1-H1*sin α)/(L1-H1*sin α) (formula 3)
The angle that human eye needs relative to display to offset can be obtained from formula 3, i.e. compensate regulation angle γ；
So headrest display screen needs the angle total amount rotated to be-(α+γ).
Headrest display screen angle Automatic adjustment method the most according to claim 1, it is characterised in that: when the chair back makes, relative to the angle of inclination of initial position, the viewing headrest display screen that back-seat passengers cannot be comfortable, described headrest display screen goes back automatically shrinking.
5. a headrest display screen automatic angle adjusting device, it is characterised in that: include
Detector unit, the regulation angle of the front-seat chair back of detection；
Regulate unit first, according to described regulation angle, the headrest display screen on the described front-seat chair back is regulated first, makes headrest display screen keep initial angle, before this initial angle refers to front-seat chair back regulation, the angle in headrest display screen opposed vertical face；
Compensate regulation unit, described headrest display screen is compensated regulation, so that it is vertical with the sight line that heel row user watches screen center to compensate the headrest display screen place plane after regulation.
A kind of headrest display screen automatic angle adjusting device, it is characterised in that:
Described detector unit includes angular transducer, MUX and AD conversion IC being sequentially connected with；Described angular transducer is located on the chair back；
Regulation unit and compensation regulation unit include that the CPU being sequentially connected with, slider control control IC, motor and two slider control first；Two slider control connect the top and bottom of headrest display screen and respectively by described driven by motor, and described CPU is also connected with described AD conversion IC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510095890.3A CN105984410A (en) | 2015-03-04 | 2015-03-04 | Method and device for automatic adjustment of angle of headrest display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510095890.3A CN105984410A (en) | 2015-03-04 | 2015-03-04 | Method and device for automatic adjustment of angle of headrest display screen |
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| Publication Number | Publication Date |
|---|---|
| CN105984410A true CN105984410A (en) | 2016-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510095890.3A Pending CN105984410A (en) | 2015-03-04 | 2015-03-04 | Method and device for automatic adjustment of angle of headrest display screen |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110789470A (en) * | 2018-08-03 | 2020-02-14 | 上海博泰悦臻网络技术服务有限公司 | Vehicle-mounted mobile terminal control device and method |
| DE102023003650B3 (en) | 2023-09-07 | 2024-08-29 | Mercedes-Benz Group AG | vehicle |
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| US5507556A (en) * | 1994-11-04 | 1996-04-16 | Burns Aerospace Corporation | Seat including an automatically adjustable display screen assembly |
| US20040016782A1 (en) * | 2002-07-27 | 2004-01-29 | Hsu Te Hsin | Monitoring supporting device for attaching to vehicles |
| US6822812B1 (en) * | 2003-06-12 | 2004-11-23 | The Boeing Company | Off-angle display systems and associated methods of manufacture and use |
| CN2712722Y (en) * | 2004-06-09 | 2005-07-27 | 华忆科技(深圳)有限公司 | Chair back display unit |
| EP1662782A1 (en) * | 2003-08-27 | 2006-05-31 | Matsushita Electric Industrial Co., Ltd. | Image display system and method of producing the same |
| US20100045088A1 (en) * | 2007-05-14 | 2010-02-25 | Panasonic Corporation | Image display |
| CN102858595A (en) * | 2010-05-10 | 2013-01-02 | 科尼蒂克西股份公司 | Device for attaching a tablet computer |
| WO2013042162A1 (en) * | 2011-09-20 | 2013-03-28 | 三菱電機株式会社 | Monitor support mechanism |
-
2015
- 2015-03-04 CN CN201510095890.3A patent/CN105984410A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5507556A (en) * | 1994-11-04 | 1996-04-16 | Burns Aerospace Corporation | Seat including an automatically adjustable display screen assembly |
| US20040016782A1 (en) * | 2002-07-27 | 2004-01-29 | Hsu Te Hsin | Monitoring supporting device for attaching to vehicles |
| US6822812B1 (en) * | 2003-06-12 | 2004-11-23 | The Boeing Company | Off-angle display systems and associated methods of manufacture and use |
| EP1662782A1 (en) * | 2003-08-27 | 2006-05-31 | Matsushita Electric Industrial Co., Ltd. | Image display system and method of producing the same |
| CN2712722Y (en) * | 2004-06-09 | 2005-07-27 | 华忆科技(深圳)有限公司 | Chair back display unit |
| US20100045088A1 (en) * | 2007-05-14 | 2010-02-25 | Panasonic Corporation | Image display |
| CN102858595A (en) * | 2010-05-10 | 2013-01-02 | 科尼蒂克西股份公司 | Device for attaching a tablet computer |
| WO2013042162A1 (en) * | 2011-09-20 | 2013-03-28 | 三菱電機株式会社 | Monitor support mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110789470A (en) * | 2018-08-03 | 2020-02-14 | 上海博泰悦臻网络技术服务有限公司 | Vehicle-mounted mobile terminal control device and method |
| DE102023003650B3 (en) | 2023-09-07 | 2024-08-29 | Mercedes-Benz Group AG | vehicle |
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