CN101488030A - Display screen adjustment device and method - Google Patents
Display screen adjustment device and method Download PDFInfo
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- CN101488030A CN101488030A CNA2009101053293A CN200910105329A CN101488030A CN 101488030 A CN101488030 A CN 101488030A CN A2009101053293 A CNA2009101053293 A CN A2009101053293A CN 200910105329 A CN200910105329 A CN 200910105329A CN 101488030 A CN101488030 A CN 101488030A
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Abstract
The invention is applicable to the technical field of a display screen, and provides an adjustment device for the display screen and a method thereof. The adjustment device comprises a position detector, a setting calculator and a display screen adjustor, wherein the position detector is used for detecting the position of a user; the setting calculator is used for calculating setting of height and/or angle of the display screen according to the position of the user; and the display screen adjustor is used for adjusting the display screen according to the setting. The adjusting method comprises the following steps: (A) the position detector detects the position of the user; (B) the setting calculator calculates the setting of the height and/or the angle of the display screen according to the position of the user; and (C) the display screen adjustor adjusts the display screen according to the setting. The technical proposal can automatically detect the position of the user, and can automatically adjust the height and/or the angle of the display screen according to the position of the user to adapt to watching orientation of the user, so that the user can see the best display effect of a television without self-adjustment by the user.
Description
Technical field
The present invention relates to a kind of display screen adjustment device, the adjusting gear of especially a kind of display screen height and/or angle.
The invention still further relates to the method for adjustment of a kind of display screen height and/or angle.
Background technology
Chinese invention patent Shen Qing Publication instructions 200610121681.2 discloses a kind of display and adjusting gear thereof.
This display comprises: a pedestal; One panel; One adjusting gear is arranged between this pedestal and this panel, and this adjusting gear comprises: one first element comprises one first positioning area; And one second element, be connected in this panel, this second element is being arranged on this first element in the mode of moving between a primary importance and the second place, this second element comprises one second positioning area, and this second positioning area is this first positioning area that is arranged at this first element in separable mode; When this second element is positioned at this primary importance, this second positioning area is positioned this first positioning area, when this second element relatively moves to this second place by this primary importance, this second positioning area is positioned this first positioning area, wherein, has a difference between this primary importance and this second place.
Display described above can only be adjusted the height of display screen, and can not be in the horizontal direction with vertical direction on adjust the angle of display screen, and when adjusting the height of display screen, need the user manually to adjust, and can not automatically detect user's position and according to adjusting the residing position of user, the user operates pretty troublesome, can not bring convenience to the user.
Chinese invention patent Shen Qing Publication instructions 200710075867.3 discloses a kind of system of remote control rotating television base plate.
This system is achieved in that it comprises motor and the contact that is installed on the televisor understructure spare, and it also includes on the circuit board that is arranged at televisor the rotation control circuit that is connected with the status detection circuit that reflects described contact and with testing circuit with the rotation of control television base.
In this system, the rotation of televisor realizes by motor, contact, testing circuit and rotation control circuit.This televisor can only be adjusted the angle on the display screen horizontal direction, and can not adjust the height of display screen.This televisor needs the user to use a teleswitch the display screen in the televisor is adjusted, and can not automatically detect user's position and adjust according to the residing position of user.The user not necessarily can adjust to best orientation to televisor so that the user sees the optimal display result of televisor when using a teleswitch the angle of adjustment televisor.
Summary of the invention
An object of the present invention is to provide a kind of display screen adjustment device, this adjusting gear can detect the residing position of user automatically and adjust the height of display screen and/or angle automatically to adapt to user's the orientation of watching according to user's position, make the user see the optimal display result of televisor, and do not need the user to adjust voluntarily.
Another object of the present invention provides a kind of display screen method of adjustment, it can detect the residing position of user automatically, automatically adjust the height of display screen and/or angle to adapt to user's the orientation of watching according to user's position, make the user see the optimal display result of televisor, and do not need the user to adjust voluntarily.
According to a first aspect of the invention, provide a kind of display screen adjustment device, this adjusting gear comprises: position detector is used to detect user's position; The adjustment amount counter is used for the adjustment amount according to described display screen height of user's position calculation and/or angle; The display screen adjuster is used for according to described adjustment amount display screen being adjusted.
According to a second aspect of the invention, provide a kind of display screen method of adjustment, this method of adjustment may further comprise the steps: (A) position detector detects user's position; (B) the adjustment amount counter is according to the adjustment amount of described display screen height of user's position calculation and/or angle; (C) the display screen adjuster comes described display screen is adjusted according to described adjustment amount.
As a kind of improvement to above-mentioned adjusting gear, described position detector comprises: image grabber is used to obtain user images; Face detector is used for detecting face image from user images, and extracts face feature; Position calculator is used for calculating face image distance between the face feature in the position of user images and face image, and calculates user's orientation.
Improve as the another kind to above-mentioned adjusting gear, described display screen adjuster comprises: propulsion system are used for providing power to gearing; Gearing, it and propulsion system are coupled, and are used for display screen is adjusted.
As to above-mentioned improved further improvement, described display screen adjuster also comprises: the adjustment amount sensor is used to measure height value and/or the angle value that display screen is adjusted, and the result is sent to controller.
As the another kind of above-mentioned adjusting gear is improved, described position detector comprises: infrared transmitter, be used to produce infrared light and respectively to the directions X in the residing space of user, and the Y direction, the Z direction scans; The time reference signal transmitter is used for the generation time reference signal, to being scanned spatial emission X, Y, Z time reference signal; Position transducer is used to measure infrared transmitter at X, Y, the scanning coordinate of Z direction; The infrared light receiver is used to receive the infrared scan signal that infrared transmitter sends; The time reference signal receiver is used to receive X, Y, Z time reference signal; Storer is used for the corresponding relation of memory scanning time and customer location; Controller, be used for computing time reference signal and the infrared scan signal between mistiming, draw position coordinates.
As a kind of improvement to above-mentioned method of adjustment, step (A) specifically comprises: image grabber is obtained user images; Face detector detects face image from user images, and extracts face feature; Position calculator calculate face image in user images the position and face image in distance between the face feature, and calculate user's orientation.
As to above-mentioned improved further improvement, set up the corresponding relation of the distance between the face feature in the distance of user face and image grabber and the face image before in advance in step (A).
As improvedly further improving above-mentioned, at step (A), position detector utilizes above-mentioned corresponding relation, according to face image in user images the position and face image in distance calculation user's orientation between the face feature.
As a kind of improvement to above-mentioned method of adjustment, at step (C), the display screen adjuster is adjusted height, the angle of display screen successively.
For adjusting gear of the present invention, owing to combine position detector, the adjustment amount counter, the display screen adjuster, so this adjusting gear can detect residing position of user face and viewing angle by position detector, calculating display screen by the adjustment amount counter needs the amount adjusted on height and/or angle, adjust the height and/or the angle of display screen by the display screen adjuster, reaches automatic adjustment display screen to adapt to user's the purpose of watching the orientation.
For method of adjustment of the present invention, owing to utilized position detector, adjustment amount counter and display screen adjuster, position detector detects user's position, the adjustment amount counter is according to the adjustment amount of described display screen height of user's position calculation and/or angle, the display screen adjuster comes described display screen is adjusted according to described adjustment amount, thus this display screen can adjust automatically the height and/or angle to adapt to user's the orientation of watching, do not need the user to adjust.
Description of drawings
Fig. 1 is the synoptic diagram of first embodiment of adjusting gear of the present invention.
Fig. 2 is the block diagram of first embodiment of adjusting gear of the present invention.
Fig. 3 is the process flow diagram of first embodiment of method of adjustment of the present invention.
Fig. 4 is the process flow diagram of second embodiment of method of adjustment of the present invention.
Fig. 5 and Fig. 6 are respectively model sketch and the process flow diagram of setting up the function that is used for measurement image getter and user face distance.
Fig. 7 is first model sketch that is used to measure the method in user face orientation.
Fig. 8 and Fig. 9 are respectively the model sketch and the process flow diagram of the method that is used to adjust the display screen height.
Figure 10 and Figure 11 are respectively the model sketch and the process flow diagram of the method that is used to adjust the display screen angle.
Figure 12 and Figure 13 are respectively second the model sketch and the process flow diagram of the method that is used to measure user face orientation.
Figure 14 is the block diagram of second embodiment of adjusting gear of the present invention.
Figure 15, Figure 16 and Figure 17 are respectively the process flow diagram of first embodiment of the method that is used to adjust display screen height and/or angle.
Figure 18 and Figure 19 are respectively the process flow diagram of second embodiment of the method that is used to adjust display screen height and/or angle.
Figure 20 is the block diagram of the 3rd embodiment of adjusting gear of the present invention.
Figure 21 is the block diagram of the 4th embodiment of adjusting gear of the present invention.
Embodiment
Chinese invention patent ublic specification of application 00132461.6,200680026965.1, Chinese invention patent instructions ZL200410086504.6, ZL200310116033.4, US Patent specification US4975960 etc. disclose the technology about the face detection aspect, and the present invention with these technology as a reference.
Display screen of the present invention can be the display screen of televisor, also can be the display screen of monitor.
With reference to figure 1, with the LCD televisor the present invention is described here, the LCD televisor comprises base 101, display screen 102, image grabber 103, gearing 104, propulsion system 105.
With reference to figure 2, in the adjusting gear of present embodiment, position detector comprises image grabber 103, face detector 201, position calculator 203, the display screen adjuster comprises controller 202, propulsion system 105, gearing 104, further, the display screen adjuster also comprises adjustment amount sensor 205, and the adjustment amount counter is served as by controller 202.
The exemplary of image grabber 103 is camera or video camera, be used for obtaining user images by taking pictures or making a video recording, in the present embodiment, user images is that the user who watches TV programme before televisor is taken the image that is obtained, more than one of user's possibility, also may not have, this situation is had no talent exactly and is being seen TV.If image grabber 103 is video cameras, then obtain a two field picture in the video flowing as user images.
The user images that face detector 201 is used for comprehensive reference face image and image grabber 103 acquisitions detects face image, and extracts face feature.Face detector 201 has has stored the reference face image memory of data, and certainly, face detector 201 also can use storer 204 to come the stored reference face image data, for easy, uses storer 204 to illustrate here.Face detector 201 is extracted face feature, as eyes, and nose, face etc., if a plurality of faces are arranged in the user images, then face detector 201 detects these faces in the lump entirely.
Gearing 104 is used to raise or reduces the height of display screen 102, and in the horizontal direction, rotary display screen 102 on the vertical direction.In the present invention, gearing 104 can be more than one, is used for adjusting respectively as required the height of display screen 102, the angle on the horizontal direction, the angle on the vertical direction.Propulsion system 105 are coupled with gearing 104, are used for supplying with power to gearing 104.In the present invention, propulsion system 105 also can be more than one.Gearing 104, propulsion system 105 have multiple different kind.In one embodiment of the invention, gearing 104 is being a hydraulic jack 1408 aspect the height of adjusting display screen 102, be angular setting motor 1410 aspect the angle of adjusting display screen 102, propulsion system 105 are being oil pumping devices 1407 aspect the height of adjusting display screen 102, as the combination of motor and reductor or the combination of air pump and cylinder, be gear 1411 aspect the angle of adjusting display screen 102; In another embodiment of the present invention, gearing 104 is being respectively turbine and worm 2013 and gear 1411 aspect the height of adjusting display screen 102 and the angle, and propulsion system 105 are being respectively height control motor 2002 and angular setting motor 1410 aspect the height of adjusting display screen 102 and the angle.The gearing 104 of adjusting the display screen height can also be a screw-jack.
Adjustment amount sensor 205 is used to measure the amount that display screen 102 has been adjusted on height, angle, display screen 102 height that raises or reduced for example, the angle of having rotated in the horizontal direction, the angle that in the vertical direction has rotated.Adjustment amount sensor 205 can be an angular transducer 1413, also can be flow sensor 1412, can also be height sensor 2001.
Referring to figs. 2 and 3, in step 301, image grabber 103 is obtained user images by taking pictures or making a video recording.In step 302, storer 204 receives user images from image grabber 103, and stores, and perhaps, image grabber 103 directly sends to face detector 201 to user images after having obtained user images.In step 303, face detector 201 comprehensively is stored in the reference face image Data Detection user images in the storer 204.In step 304, face detector 201 judges whether contain face image in the user images, if having, then enters step 305, and if not, face detector 201 is to controller 202 transmission information, and controller 202 finishes to adjust the height and/or the angle of display screen 102.In step 305, face detector 201 detects all face images from user images, and face feature is extracted, face feature described here can be eyes, also can be nose, can also be face, in the present embodiment, with the mid point of eyes line as face's representative point.In step 306, position calculator 203 calculates the position of face's representative point, position as face image, " center of gravity " of these face images of position calculation of position calculator 203 comprehensive all face images, if have only two face images in the user images, then " center of gravity " is exactly the center of two face image representative point lines, if user images has a plurality of face images, then " center of gravity " is exactly polygonal center or the center of gravity that these a plurality of face image representative points are surrounded.In step 307, controller 202 is according to positional information calculation display screen 102 height of face image and/or the adjustment amount of angle.In step 308, controller 202 driving power device 105 and gearing 104.In step 308, propulsion system 105 and gearing 104 are adjusted the height and/or the angle of display screen 102.
With reference to figure 2 and Fig. 4, in step 401, image grabber 103 is obtained user images by taking pictures or making a video recording.In step 402, storer 204 storages receive user images from image grabber 103, and perhaps, image grabber 103 directly sends to face detector 201 to user images after having obtained user images.In step 403, face detector 201 comprehensively is stored in the reference face image Data Detection user images in the storer 204.In step 404, face detector 201 judges whether contain face image in the user images, if having, then enters step 405, and if not, face detector 201 is to controller 202 transmission information, and controller 202 finishes to adjust the height and/or the angle of display screen 102.In step 405, face detector 201 detects all face images from user images, and face feature extracted, face feature described here can be eyes, also can be nose or face, certainly can also be the combination in any of eyes, nose, face, in the present embodiment, with the mid point of eyes line as face's representative point.In step 406, position calculator 203 calculates the position of face's representative point, position as face image, " center of gravity " of these face images of position calculation of position calculator 203 comprehensive all face images, if have only two face images in the user images, then " center of gravity " is exactly the center of two face image representative point lines, if user images has a plurality of face images, then " center of gravity " is exactly polygonal center or the center of gravity that these a plurality of face image representative points are surrounded.In step 407, controller 202 is according to positional information calculation display screen 102 height of face image and/or the adjustment amount of angle.In step 408, controller 202 driving power device 105 and gearing 104.In step 410, the result that controller 202 is measured according to adjustment amount sensor 205 judges whether display screen 102 residing height and/or angle meet setting value, if, then enter step 411, if not, then enter step 409.In step 409, controller 202 is repeated execution of steps 401 after the process schedule time.In step 411, controller 202 stops to adjust the height and/or the angle of display screen 102.In the present embodiment,, adjust, detect again, adjust again ... make display screen 102 adjust to an orientation that the most suitable user watches by detecting.
The method of the corresponding relation f that sets up D and d is discussed below.Here, D is the distance of user face and image grabber 103, d is face detector 201 or the distance of controller 202 between the face feature of measuring under the original size of face image, as distance of distance, face center and the nose of distance, nose and the right eye of two distances, nose and left eye or the like, illustrate with two distance here.
Need to prove, because the corresponding relation f of D and d measures to calculate in advance, so controller 202 described here, image grabber 103, face detector 201 grades not necessarily are exactly controller 202 of the present invention, image grabber 103, face detector 201 etc., can use the corresponding relation f of other device measuring D and d, then f is stored in the storer 204.Here, for easy, use controller 202 of the present invention, image grabber 103, face detector 201 wait the method that the corresponding relation f that sets up D and d is described.
With reference to figure 5 and Fig. 6, in step 601, it is the rectangular coordinate system of initial point that controller 202 is set up with image grabber 103, if image grabber 103 is in the same surface level with the user, and establish image grabber 103 and user face on same straight line, the coordinate of image grabber 103 on this coordinate axis is 0.In step 602, the distance D of storer 204 recording user faces and image grabber 103
i, suppose that the coordinate of user face on this coordinate axis is D
0, D
00, then the distance of user face and image grabber 103 is exactly D
0In step 603, image grabber 103 is obtained user images.In step 604, face detector 201 comprehensive reference face images detect user images.In step 605, face detector 201 identifies face image, extracts face feature.In step 606, two the distance that controller 202 is measured under the original size of face image is designated as d
0In step 607, storer 204 record data d
iIn step 608, user face is moved a unit length (as 1cm) toward the coordinate axis positive dirction, and certainly, also the coordinate axis negative direction moves a unit length (as 1cm) in the past, situation about moving toward the coordinate axis positive dirction is discussed here, and at this time the coordinate of user face is D
1, promptly image grabber 103 is D with the distance of user's face image
1, image grabber 103 is obtained user images, and controller 202 is measured in the face image two distance under original size, be designated as d
1By that analogy, obtain the data of one group of correspondence:
| The distance D of user face and |
Under the original size in the face image two apart from d |
| D 0 | d 0 |
| D 1 | d 1 |
| D 2 | d 2 |
| D 3 | d 3 |
| . . . | . . . |
In step 609, controller 202 is judged D
iGreater than a certain predetermined value, predetermined value described here is meant measuring distance, because the length in the parlor of family or room or widely generally can not surpass some numerical value, as 10m, can be this numerical value as predetermined value, if, then enter step 610, if not, then continue execution in step 603.In step 610, controller 202 stops to measure, and calculates D from top that group numerical value
iAnd d
iCorresponding relation f:D=f (d).
With reference to figure 7, user face is projected in CCD (the Charge Coupled Device of image grabber 103 through the lens 702 of image grabber 103, charge-coupled image sensor) on 701, measure the distance (or pixel count) of two of user faces among the distance of lens 702 and CCD701 and the CCD701, can calculate D according to the character of similar triangles
iWith d
iValue.If image grabber 103 is not the face that faces the user, there is certain included angle in the normal that is user's sight line and plane, display screen 102 place, then the projection of user face on CCD701 can not drop on the positive center of CCD701, the position of two of user faces and utilize the character of similar triangles to calculate the angle of the normal on user's sight line and plane, display screen 102 place among distance that can be by measuring lens 702 and CCD701 and the CCD701 can draw the residing orientation of user face thus.
The method of the adjustment amount that calculates display screen 102 height and/or angle is discussed below.
Because image grabber 103 can not be installed in the positive center of display screen 102, can only be installed in places such as outer face-piece of display screen 102 or base, so, for easy, might as well suppose that image grabber 103 is installed in the middle place at the edge of television display screen 102 upper horizontal directions, like this, just there is certain distance in image grabber 103 with display screen 102 positive center in the vertical directions, be made as h, certainly, image grabber 103 also can be installed in the face-piece place on television display screen 102 left sides or the right.The value of measuring h is recorded in the storer 204 in advance.
With reference to figure 8 and Fig. 9, in step 901, after image grabber 103 is obtained user images, enter step 902, user images is stored in the storer 204, perhaps directly user images is sent to face detector 201, then in step 903, face detector 201 comprehensive reference face images detect user images, and in step 904, controller 202 judges whether contain face image in the user images, if have, then enter step 906, if not, enter step 905.In step 906, face detector 201 detects all face images from user images.The representative point of supposing user's face image is for (x, y), (x, occurrence y) can be calculated by face detector 201 or controller 202.In step 907, position calculator 203 calculates the position (x of all face images
1, y
1), (x
2, y
2) ... (x
n, y
n) afterwards, calculate " center of gravity " (x of these face images
a, y
a), x
a=(1/n) (x
1+ x
2+ ...+x
n), y
a=(1/n) (y
1+ y
2+ ...+y
n).In step 908, controller 202 is according to the adjustment amount of positional information calculation display screen 102 height, according to the positional information of the above-mentioned face image that is calculated by position calculator 203, the amount that in the vertical direction display screen 102 will be adjusted is the height value H=y that display screen 102 will be adjusted
0-y
a-h.In step 909, controller 202 is carried out and is judged, if H〉0, then display screen 102 needs to raise, if H＜0, then display screen 102 needs to reduce, if H=0, then display screen 102 does not need to adjust height.In step 910, propulsion system 105 and gearing 104 are adjusted the height of display screen 102 according to the value of H.In step 911, the result that controller 202 is measured according to adjustment amount sensor 205 judges whether the height that display screen 102 is adjusted meets setting value, setting value described here is meant the value of H, that is to say whether display screen 102 adjusted height adapt to user's the orientation of watching, if, then enter step 912, to adjust the angle of display screen 102, if not, then repeated execution of steps 910.
With reference to figure 8 and Figure 10, if the face image in the user images is too big or too little, face detector 201 is difficult to detect face image, then user images is dwindled with put rate x or amplify, position calculator 203 calculate through magnification x amplify or minification x dwindle two eyes in the face image that obtains apart from d, two eyes in the face image are come out by extracting feature detection by face detector 201, controller 202 is according to formula D=f (d/x) or utilize the described method of Fig. 7 to calculate the actual range D of user face and image grabber 103, x is magnification or minification, and the actual range L of the normal on user face and plane, image grabber 103 place.Can draw each user's the face and the actual range D of image grabber 103 thus
1, D
2..., Dn, and the actual range L of the normal on user face and plane, image grabber 103 place
1, L
2..., L
nThe included angle A of normal on surface level on the sight line of user i and plane, display screen 102 place
i=arctan (L
i/ D
i).So the amount that will adjust of display screen 102 is the angle value A that display screen 102 will be adjusted in the horizontal direction
a=(1/n) (A
1+ A
2+ ...+A
n).In fact, when the representative point in the vertical direction of image grabber 103 and user face existed distance H, user's face and image grabber 103 be not on same level, by D
iThe A that calculates
iJust inaccurate, therefore in order to obtain accurate D
i, must image grabber 103 adjust to user's face same surface level on.
With reference to Figure 10 and Figure 11, in step 1101, display screen 102 is after having adjusted height, image grabber 103 is obtained user images once more, enter step 1102, user images is stored in the storer 204, perhaps directly user images is sent to face detector 201, then in step 1103, face detector 201 comprehensive reference face images detect user images, in step 1104, controller 202 judges whether contain face image in the user images, if having, then enter step 1106, if not, enter step 1105, step 1105 is the same with step 905.In step 1106, face detector 201 detects all face images from user images.In step 1107, position calculator 203 calculates after the position of all face images, and in step 1108, controller 202 calculates A according to the method described above
i, i=0,1,2..., and by A
iCalculate the angle value A that display screen 102 will be adjusted
aIn step 1109, controller 202 is carried out and is judged, judges A
aWhether be zero, if, then finish, if not, then enter step 1110, propulsion system 105 and gearing 104 are according to A
aAdjust the angle of display screen 102.In step 1111, the result that controller 202 is measured according to adjustment amount sensor 205 judges whether the angle that display screen 102 is adjusted meets setting value, and setting value described here is meant A
aValue, that is to say whether display screen 102 adjusted angles adapt to user's the orientation of watching, if, then finish to adjust the height and/or the angle of display screen 102, if not, then repeated execution of steps 1110.
With reference to Figure 12 and Figure 13, in step 1301, controller 202 determines to detect the space according to the position of image grabber 103, controller 202 described here, image grabber 103, storer 204 not necessarily is exactly a controller 202 of the present invention, image grabber 103, storer 204 is for easy, here use controller 202 of the present invention, image grabber 103, storer 204 illustrates the method that is used to measure user's face image position, in addition, detection space described here is a relative notion, it is the interior space of the pairing scope in orientation that is in image grabber 103, and this space can be dropped within the coverage of image grabber 103, also can exceed the coverage of image grabber 103, along with the change of image grabber 103 positions, the orientation that detects the space also can change.In step 1302, controller 202 will detect spatial division and become the experimental process space, among Figure 12, clear in order to show, will detect spatial division and become 5 * 5 * 5 sub spaces, in fact, if will make the result who detects user's face image accurate, divide the subspace the smaller the better.In step 1303, controller 202 mark subspaces, (x, y z) come the mark subspace can to utilize volume coordinate.In step 1304, controller 202 calculates the orientation of the relative image grabber 103 in each subspace, and orientation described here comprises the coordinate (x of subspace, y, z), the line angle in the horizontal direction of subspace and image grabber 103, perhaps angle in vertical direction.In step 1305, the positional information of storer 204 storage subspaces.
With reference to Figure 14, in the adjusting gear of present embodiment, position detector comprises image grabber 103, face detector 201, position calculator 203, the display screen adjuster comprises oil pumping device 1407, hydraulic jack 1408, angular setting motor 1410, gear 1411, further, the display screen adjuster also comprises adjustment amount sensor 205, here, adjustment amount sensor 205 is being a flow sensor 1412 aspect the height of adjusting display screen 102, is being angular transducer 1413 aspect the angle of adjusting display screen 102, and the adjustment amount counter is served as by controller 202, certainly, the adjustment amount counter can also be as a module independently.In the present embodiment, adjusting gear also comprises current regulator 1401, be used for being input to the electric current of oil pumping device 1407 and angular setting motor 1410 according to the Signal Regulation of controller 202, on the one hand can control display screen 102 height and/or the regulating the speed of angle, can on height and/or angle, finely tune display screen 102 on the one hand, can also switch sense of current in the propulsion system 105 on the other hand.As shown in figure 14, adjusting gear of the present invention can also comprise key input unit 1409, and the input that is used to respond the user generates corresponding signal, and sends to controller 202.With reference to Figure 20, typical key input unit 1409 is telepilots 2010, certainly, can also be the keypad on the televisor.If key input unit 1409 is telepilots 2010, modulating device so of the present invention also comprises receiver 2008, is used to receive the signal that is sent by telepilot 2010, and sends this signal to controller 1406.In an embodiment of the present invention, if the user opens the function of automatic adjustment display screen by key input unit 1409, then adjusting gear detects the residing position of user automatically, according to user's position calculation display screen 102 height and/or the adjustment amount of angle, automatically adjust the height and the angle of display screen 102 then, make display screen 102 adjust to an orientation that the most suitable user watches.If the user closes the function of automatic adjustment display screen by key input unit 1409, then the user can control propulsion system 105 and gearing 104 by key input unit 1409, in the present embodiment, propulsion system 105 are embodied in oil pumping device 1407 and/or motor 1410, and gearing 104 is embodied in hydraulic jack 1408 and reductor.
Discuss controller 202 below for example and how to control propulsion system 105 and gearing 104 to adjust the height and/or the angle of display screen 102.
With reference to Figure 14 and Figure 15, oil pumping device 1407 of the present invention is as the propulsion system 105 of the height of adjusting display screen 102, and it is the combination of motor and reductor, or the combination of air pump and cylinder.Hydraulic jack 1408 is as the gearing 104 of the height of adjusting display screen 102, as hydraulic jack.Angular setting motor 1410 is as the propulsion system of the angle of adjusting display screen 102.Gear 1411 is as the gearing of the angle of adjusting display screen 102.Adjustment amount sensor 205 is flow sensor 1412 aspect height control, be used to measure the oil inlet quantity and/or the dredge oil amount of hydraulic jack 1408, be angular transducer 1413 aspect angular setting, angular setting described here comprise on the horizontal direction and vertical direction on angular setting.In Figure 14 and embodiment shown in Figure 15, the propulsion system 105 of adjusting the height of display screen 102 also comprise automatic valve 1402, are used for discharging according to the signal of controller 202 outputs the oil of hydraulic jack 1408.In this embodiment, controller 202 is used for signal controlling current regulator 1401, automatic valve 1402, oil pumping device 1407 and the angular setting motor 1410 according to position calculator 203, flow sensor 1412 and angular transducer 1413 transmissions.
In step 1501, position calculator 203 sends to controller 202 with the information of face location.In step 1502, controller 202 receives this information and calculates the adjustment amount of display screen 102 height and/or angle.In step 1503, controller 202 judges whether to need to adjust the height of display screen 102, if, then enter step 1505, if not, then enter step 1504.In step 1505, controller 202 further judges it is rising display screen 102 or reduction display screen 102, if raise, is entering step 1509, if reduce, then enters step 1508.In step 1504, controller 202 judges whether to need to adjust the angle of display screen 102, if, then enter step 1506, if not, then finish to adjust.In step 1509, to hydraulic jack 1408 oil transportations, the control of 202 pairs of oil pumping devices 1407 of controller can realize by a switch under the driving of controller 202 for the display screen 102 that raise, oil pumping device 1407.In step 1510, under the drive of oil pumping device 1407, hydraulic jack 1408 lifting display screens 102.In step 1511, flow sensor 1412 is measured the oil inlet quantity of hydraulic jack 1408.In step 1512, controller 1406 calculates the height that display screen 102 raises, the cross-sectional area of the height=oil inlet quantity of rising/piston rod according to oil inlet quantity.In step 1513, controller 202 judges through the result who measures according to flow sensor 1412 after the schedule time whether the height of living in of display screen 102 meets setting value, setting value described here is that the display screen that calculates of controller 202 102 needs the height value adjusted, if, entering step 1515, if not, then enter step 1514.In step 1515, controller 202 gauge tap stop to hydraulic jack 1408 oil transportations oil pumping device 1407, so display screen 102 just tops out.In step 1514, controller 202 judges that further display screen 102 residing height are to surpass setting value or be lower than setting value, if surpass, then enters step 1516, if not, then continues execution in step 1509.Step 1516 is the same with step 1507.
Figure 17 has further described step 1508.With reference to Figure 14 and Figure 17, in step 1701, controller 202 is opened automatic valve 1402, so the hydraulic cylinder in the hydraulic jack 1408 just begins draining.In step 1702, hydraulic jack 1408 reduces the height of display screen 102.In step 1703, flow sensor 1412 is measured the dredge oil amount of hydraulic jack 1408, and the data of dredge oil amount are sent to controller 1406.In step 1704, controller 202 calculates display screen 102 residing height, the cross-sectional area of the height=dredge oil amount of reduction/piston rod according to dredge oil amount.In step 1705, controller 202 judges through the result who measures according to flow sensor 1412 after the schedule time whether display screen 102 residing height meet setting value, if, then enter step 1707, if not, then enter step 1706.In step 1707, controller 202 cuts out automatic valve 1402.In step 1706, controller 202 judges that further display screen 102 residing height are lower than setting value or above setting value, if be lower than, then enter step 1708, if not, then continues execution in step 1702.Step 1708 is step 1507 just.
Figure 16 has further described step 1506, and step 1506 is the same with the step 1806 among Figure 18 here.With reference to Figure 14 and Figure 16, in step 1601, current regulator 1401 receives the signal that controller 202 sends.In step 1602, controller 202 judges whether display screen 102 needs to turn left, if, then enter step 1604, if not, then enter step 1603.In step 1604, angular setting motor 1410 turns left by reductor driving display screen 102.In step 1603, motor 1410 turns right by reductor driving display screen 102.In step 1605, angular transducer 1413 is measured the angle that display screen 102 turns over.In step 1606, controller 202 is judging through the result who measures according to angular transducer 1413 after the schedule time whether the angle that display screen 102 is turned over meets setting value, setting value described here is that the display screen that calculates of controller 1,406 102 needs the angle value adjusted, if, then enter step 1608, if not, then enter step 1607.In step 1608, current regulator 1401 cuts off the electric current of motor 1410.In step 1607, the angle that controller 202 calculating turn over and the difference of setting value, repeated execution of steps 1601 then.
With reference to Figure 14 and Figure 18, an alternative embodiment of the invention has been described here, this embodiment is a kind of improvement of above-mentioned Figure 14, Figure 15, Figure 16 and embodiment shown in Figure 17.In step 1801, position calculator 203 sends to controller 1406 with the information of face location, certainly, if the user uses key input unit 1409 to close the function of automatic adjustment display screen, then the user can control oil pumping device 1407 and hydraulic jack 1408 by key input unit 1409, the embodiment that adjusts display screen height and/or angle after the user has closed the function of automatic adjustment display screen by key input unit 1409 is described here, therefore, key input unit 1409 response users' input generates corresponding signal here.In step 1802, controller 1406 receives this signal, here be noted that, if key input unit 1409 is telepilots 2010, televisor so of the present invention also comprises receiver 2008, is used to receive the signal that is sent by telepilot 2010, and sends this signal to controller 1406, certainly, key input unit 1409 also can be the keypad on the televisor.In step 1803, controller 1406 judges whether the user needs to adjust the height of display screen 102, if, then enter step 1805, if not, then enter step 1804.In step 1805, controller 202 judges that further users are the display screens 102 or will reduce display screen 102 of will raising, if will raise, then enters step 1808, if not, then enters step 1809.In step 1804, controller 202 further judges whether the user needs to adjust the angle of display screen 102, if, then enter step 1806, if not, then finish to adjust.Step 1806 is the same with step 1506.In step 1808, to hydraulic jack 1408 oil transportations, the control of 202 pairs of oil pumping devices 1407 of controller can realize by a switch oil pumping device 1407 under the driving of controller 1406.In step 1810, under the drive of oil pumping device 1407, hydraulic jack 1408 lifting display screens 102.In step 1811, flow sensor 1412 is measured the oil inlet quantity of hydraulic jack 1408.In step 1812, controller 202 calculates the height that display screen 102 raises, the cross-sectional area of the height=oil inlet quantity of rising/piston rod according to oil inlet quantity.In step 1813, controller 202 judges whether the height that display screen 102 raises is certain number percent of setting value, as 90%, setting value described here is that the display screen that calculates of controller 202 102 needs the height value adjusted, if then enter step 1815, if not, then enter step 1814.In step 1815, controller 202 then, continues execution in step 1807 by the output of current regulator 1401 reduction oil pumping devices 1407.In step 1814, the result that controller 202 is measured according to flow sensor 1412 judges whether display screen 102 residing height reach setting value, if, then adjust and finish, if not, show that then the height of display screen 102 risings still is lower than certain number percent of setting value, as 90%, continues execution in step 1807.
Figure 19 has further described step 1809.With reference to Figure 14 and Figure 19, in step 1901, controller 202 is opened automatic valve 1402, so the hydraulic cylinder in the hydraulic jack 1408 just begins draining.In step 1902, hydraulic jack 1408 reduces the height of display screen 102.In step 1903, flow sensor 1412 is measured the dredge oil amount of hydraulic jack 1408, and the data of dredge oil amount are sent to controller 202.In step 1904, controller 202 calculates display screen 102 residing height, the cross-sectional area of the height=dredge oil amount of reduction/piston rod according to dredge oil amount.In step 1905, controller 202 judges through the result who measures according to flow sensor 1412 after the schedule time whether display screen 102 residing height meet setting value, setting value described here is that the display screen that calculates of controller 202 102 needs the height value adjusted, if, then enter step 1907, if not, then enter step 1906.In step 1907, controller 202 cuts out automatic valve 1402.In step 1906, controller 202 judges that further display screen 102 residing height are lower than setting value or above setting value, if be lower than, then enter step 1908, if not, then continues execution in step 1902.Step 1908 is step 1807 just.
With reference to Figure 20, in the adjusting gear of present embodiment, position detector comprises image grabber 103, face detector 201, position calculator 203, the display screen adjuster comprises height control motor 2002, turbine and worm 2013, angular setting motor 1410, gear 1411, further, the display screen adjuster also comprises adjustment amount sensor 205, here, adjustment amount sensor 205 is being a height sensor 2001 aspect the height of adjusting display screen 102, is being angular transducer 1413 aspect the angle of adjusting display screen 102, and the adjustment amount counter is served as by controller 202, certainly, the adjustment amount counter can also be as a module independently.In the present embodiment, height control motor 2002 is as the propulsion system 105 of the height of adjusting display screen 102, and turbine and worm 2013 is as the gearing 104 of the height of adjusting display screen 102; Angular setting motor 1410 is as the propulsion system 105 of the height of adjusting display screen 102, and gear 1411 is as the gearing 104 of the height of adjusting display screen 102.The gearing 104 of adjusting the height of display screen 102 can also be a screw-jack.In the present embodiment, adjusting gear also comprises current regulator 1401, be used for being input to the electric current of height control motor 2002 and angular setting motor 1410 according to the Signal Regulation of controller 202, on the one hand can control display screen 102 height and/or the regulating the speed of angle, can on height and/or angle, finely tune display screen 102 on the one hand, can also switch sense of current in the propulsion system 105 on the other hand; Height sensor 2001 is used to measure the height that display screen 102 raises; Angular transducer 1413 is used to measure the angle that display screen 102 turns over.
With reference to Figure 21, in the adjusting gear of present embodiment, position detector comprises infrared transmitter 2101, infrared light receiver 2102, time reference signal transmitter 2103, time reference signal receiver 2105, storer 204 and controller 202, the display screen adjuster comprises oil pumping device 1407, hydraulic jack 1408, angular setting motor 1410, gear 1411, further, the display screen adjuster also comprises adjustment amount sensor 205, and here, adjustment amount sensor 205 is being a flow sensor 1412 aspect the height of adjusting display screen 102, be angular transducer 1413 aspect the angle of adjusting display screen 102, the adjustment amount counter is served as by controller 202.Infrared transmitter 2101 comprises the directions X infrared transmitter, Y direction infrared transmitter, and Z direction infrared transmitter is used to produce infrared light and respectively to the directions X in the residing space of user, the Y direction, the Z direction scans.Infrared light receiver 2102 is used to receive the infrared scan signal that infrared transmitter 2101 sends.Time reference signal transmitter 2103 is used for the generation time reference signal, to being scanned spatial emission X, Y, Z time reference signal.Time reference signal receiver 2105 is used to receive X, Y, and the Z time reference signal, and these signals are sent to controller 202.In the present embodiment, the corresponding relation of 204 memory scanning times of storer and customer location reads for controller 202, the mistiming between controller reference signal 202 computing time and the infrared scan signal, draws position coordinates.Position transducer 2104 is used for measuring infrared transmitter 2101 directions X infrared transmitters, Y direction infrared transmitter, the scanning coordinate of Z direction infrared transmitter.By comprehensive infrared transmitter 2101, infrared light receiver 2102, time reference signal transmitter 2103, time reference signal receiver 2105, storer 204 and controller 202 can restore the three-dimensional model of user's body, watch the orientation thereby detect the user.
The present invention is not limited to above-mentioned embodiment.The present invention can also use ultrasonic detector, thermal infrared imager to wait and detect user's the orientation of watching, so long as can detect the residing position of user, all drops within protection scope of the present invention.
Claims (10)
1. display screen adjustment device is characterized in that this adjusting gear comprises:
Position detector is used to detect user's position;
The adjustment amount counter is used for the adjustment amount according to described display screen height of user's position calculation and/or angle;
The display screen adjuster is used for according to described adjustment amount display screen being adjusted.
2. adjusting gear according to claim 1 is characterized in that described position detector comprises:
Image grabber is used to obtain user images;
Face detector is used for detecting face image from user images, and extracts face feature;
Position calculator is used for calculating face image distance between the face feature in the position of user images and face image, and calculates user's position.
3. adjusting gear according to claim 1 is characterized in that described display screen adjuster comprises:
Controller is used for according to described adjustment amount driving power device;
Propulsion system are used for providing power to gearing;
Gearing, it and propulsion system are coupled, and are used for display screen is adjusted.
4. adjusting gear according to claim 3 is characterized in that described display screen adjuster also comprises:
The adjustment amount sensor is used to measure height value and/or the angle value that display screen is adjusted, and the result is sent to controller.
5. adjusting gear according to claim 1 is characterized in that described position detector comprises:
Infrared transmitter is used to produce infrared light and respectively to the directions X in the residing space of user, the Y direction, and the Z direction scans;
The time reference signal transmitter is used for the generation time reference signal, to being scanned spatial emission X, Y, Z time reference signal;
Position transducer is used to measure infrared transmitter at X, Y, the scanning coordinate of Z direction;
The infrared light receiver is used to receive the infrared scan signal that infrared transmitter sends;
The time reference signal receiver is used to receive X, Y, Z time reference signal;
Storer is used for the corresponding relation of memory scanning time and customer location;
Controller, be used for computing time reference signal and the infrared scan signal between mistiming, draw user's position.
6. display screen method of adjustment is characterized in that this method may further comprise the steps:
(A) position detector detects user's position;
(B) the adjustment amount counter is according to the adjustment amount of described display screen height of user's position calculation and/or angle;
(C) the display screen adjuster comes described display screen is adjusted according to described adjustment amount.
7. method of adjustment according to claim 6 is characterized in that, step (A) specifically comprises:
Image grabber is obtained user images;
Face detector detects face image from user images, and extracts face feature;
Position calculator calculate face image in user images the position and face image in distance between the face feature, and calculate user's position.
8. method of adjustment according to claim 7 is characterized in that setting up in advance before in step (A) corresponding relation of the distance between the face feature in the distance of user face and image grabber and the face image.
9. method of adjustment according to claim 8 is characterized in that position detector utilizes above-mentioned corresponding relation at step (A), according to face image in user images the position and face image in distance calculation user's position between the face feature.
10. method of adjustment according to claim 6 is characterized in that at step (C), the display screen adjuster is adjusted height, the angle of display screen successively.
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| CNA2009101053293A CN101488030A (en) | 2009-02-10 | 2009-02-10 | Display screen adjustment device and method |
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Application publication date: 20090722 |