CN104375716A - Touch sensing system, control device and mobile device - Google Patents
Touch sensing system, control device and mobile device Download PDFInfo
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- CN104375716A CN104375716A CN201410549321.7A CN201410549321A CN104375716A CN 104375716 A CN104375716 A CN 104375716A CN 201410549321 A CN201410549321 A CN 201410549321A CN 104375716 A CN104375716 A CN 104375716A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
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Abstract
The invention discloses a touch sensing system, a control device and a mobile device. The touch sensing system comprises the control device and an operating device, wherein the control device comprises two position sensors and a first communication interface, and the operating device comprises a mainframe and a second communication interface. The position sensors are used for sensing air touch operation above the position sensors to obtain air touch information sent to the second communication interface of the operating device through the first communication interface, so that the mainframe of the operating device carries out operation according to the air touch information. By means of the touch sensing system, touch media can carry out touch operation with no need for touching a screen, so that the touch operation is convenient and rapid, and entertainment of products can be improved.
Description
Technical field
The present invention relates to technical field of touch control, particularly relate to a kind of touch sensing system, control device and mobile device.
Background technology
Compared with traditional mouse, keyboard operation mode, the touch control operation mode of the direct touch screen of existing finger has simple and direct-viewing operation, the recreational advantage such as by force, touch technology has been widely used in various electronic product at present, make increasing electronic product all have touch screen function, such as, there is the business display screen etc. of the smart mobile phone of touch-screen, MP3, digital camera, cash dispenser, GPS navigator, displaying.Touch-screen is a kind of simple, convenient, natural man-machine interaction mode, the operation to main frame only need can be realized by the pictograph that the touching medium touching screens such as finger or felt pen show, man-machine interaction is simple and direct, greatly reduces the threshold to product operation.
In prior art, when operating the product with touch screen function, such as when operation has the smart mobile phone of touch-screen, usually be all by pointing the pictograph directly touched on mobile phone screen, thus mobile phone realizes corresponding operating according to the position of finger on screen, namely finger need contact with mobile phone screen and can realize touch operation, and usually require that the place of finger contact screen is comparatively clean, to ensure the sensitivity touched, and when user is in washing or when being busy with other work, operating handset is wanted often comparatively to bother, such as need first finger to be dried, or need to put down in hand to work after mobile phone and just can carry out touch control operation.Extremely inconvenient user uses thus, and reduces the recreational of touch control operation.
Summary of the invention
The technical matters that the present invention mainly solves is to provide a kind of touch sensing system, control device and mobile device, touching medium can be made not need touching screen to realize touch control operation, make touch control operation fast convenient, and can improve the recreational of product.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of touch sensing system, comprise control device and operating equipment, described control device comprises two position transducers and the first communication interface, and described operating equipment comprises main frame and second communication interface; Described two position transducers are for the aerial touch control operation responded to above it and then obtain aerial touch information, by described first communication interface, described aerial touch information is sent to the second communication interface of described operating equipment, operates according to described aerial touch information to make the main frame of described operating equipment.
Wherein, described control device comprises the controller be connected with described two position transducers, described two position transducers are specifically for obtaining the induction coordinate figure of the induction coordinate system of the touch point relative position sensor above operating equipment screen itself, described controller is used for when only reading the induction coordinate figure that a position transducer obtains, the screen coordinate value of the screen coordinate system of the relatively described operating equipment screen of described touch point is calculated according to the described induction coordinate figure read, and for when reading the induction coordinate figure that two position transducers obtain respectively, the induction coordinate figure that the position transducer choosing intended level according to the priority level of described two position transducers obtains, and the screen coordinate value of the screen coordinate system of the relatively described operating equipment screen of described touch point is calculated according to the induction coordinate figure that the position transducer of described intended level obtains, described controller also for the described screen coordinate value calculated is sent to described operating equipment as aerial touch information, operates according to described screen coordinate value to make described operating equipment, described control device and described operating equipment relatively independent, described two position transducers are positioned at around described operating equipment.
Wherein, described induction coordinate figure is the coordinate figure of described touch point in the plane parallel with described operating equipment screen, the described induction coordinate figure read, specifically for the mapping relations between the induction coordinate system of the position transducer corresponding to the described induction coordinate figure that reads and the screen coordinate system of operating equipment screen, is converted to the screen coordinate value of the screen coordinate system of the relatively described operating equipment screen of described touch point by described controller.
For solving the problems of the technologies described above, another technical solution used in the present invention is: provide a kind of control device for mobile device, described control device comprises housing, the first communication interface and two position transducers, described housing comprises the first area arranging described two position transducers, the second area placing described mobile device and arranges the 3rd region of described first communication interface, and described first area is positioned at the periphery of described second area; Described two position transducers are for the aerial touch control operation responded to above it and then obtain aerial touch information, by described first communication interface, described aerial touch information is sent to described mobile device, operates according to described aerial touch information to make described mobile device.
Wherein, described control device comprises the controller be connected with described two position transducers, described two position transducers are specifically for obtaining the induction coordinate figure of the induction coordinate system of the touch point relative position sensor above mobile device screen itself, described controller is used for when only reading the induction coordinate figure that a position transducer obtains, the screen coordinate value of the screen coordinate system of the relatively described mobile device screen of described touch point is calculated according to the described induction coordinate figure read, and for when reading the induction coordinate figure that two position transducers obtain respectively, the induction coordinate figure that the position transducer choosing intended level according to the priority level of described two position transducers obtains, and the screen coordinate value of the screen coordinate system of the relatively described mobile device screen of described touch point is calculated according to the induction coordinate figure that the position transducer of described intended level obtains, described controller also for the described screen coordinate value calculated is sent to described mobile device as aerial touch information, operates according to described screen coordinate value to make described mobile device, described control device and described mobile device relatively independent, described two position transducers are positioned at around described mobile device.
Wherein, described induction coordinate figure is the coordinate figure of described touch point in the plane parallel with described mobile device screen, the described induction coordinate figure read, specifically for the mapping relations between the induction coordinate system of the position transducer corresponding to the described induction coordinate figure that reads and the screen coordinate system of mobile device screen, is converted to the screen coordinate value of the screen coordinate system of the relatively described mobile device screen of described touch point by described controller.
Wherein, described two position transducers are symmetrically distributed in around described mobile device.
Wherein, position transducer described in one of them is positioned at the side of described mobile device top, position transducer described in another is positioned at the following side of described mobile device, two described position transducers with the cross central line of described mobile device screen for axis of symmetry is symmetrical.
Wherein, described control device is mobile device overcoat, described mobile device overcoat comprise the described mobile device of collecting the first housing and as the second housing renovated, described first housing as the housing of described control device to carry described first communication interface and two position transducers.
Wherein, described first communication interface is wireless communication interface or usb communication interface.
For solving the problems of the technologies described above, another technical scheme that the present invention adopts is: provide a kind of mobile device, comprise main frame and second communication interface; The aerial touch information that two position transducers that described second communication interface is used for receiving control device are responded to the aerial touch control operation above it and then obtained, described main frame is used for operating according to described aerial touch information.
For solving the problems of the technologies described above, another technical scheme that the present invention adopts is: provide a kind of touch-control disposal route, comprising: the aerial touch information that the aerial touch control operation outside acquisition operating equipment is corresponding; Described aerial touch information is transferred to operating equipment, operates according to described aerial touch information to make the main frame of described operating equipment.
Wherein, the step of the aerial touch information that the aerial touch control operation outside described acquisition operating equipment is corresponding comprises: adopt at least one position transducer to obtain the induction coordinate figure of the induction coordinate system of the touch point relative position sensor above operating equipment screen itself, adopt controller to obtain described induction coordinate figure, when only getting the induction coordinate figure that a position transducer obtains, the screen coordinate value of the screen coordinate system of the relatively described mobile device screen of described touch point is calculated according to the described induction coordinate figure read, when getting the induction coordinate figure that at least two position transducers obtain respectively, the induction coordinate figure that the position transducer choosing intended level according to the priority level of described at least two position transducers obtains, and the screen coordinate value of the screen coordinate system of the relatively described mobile device screen of described touch point is calculated according to the induction coordinate figure that the position transducer of described intended level obtains.
The invention has the beneficial effects as follows: the situation being different from prior art, in touch sensing system of the present invention, aerial touch control operation above it is responded to obtain aerial touch information by the position transducer of two in control device, and by the first communication interface of control device, aerial touch information is sent to the main frame of operating equipment, operate according to aerial touch information to make the main frame of operating equipment, user is when operating operating equipment thus, do not need directly to touch operating equipment, only need carry out touch control operation in the induction range of position transducer, the aerial touch information of trigger action operate can be obtained thus when position transducer senses aerial touch control operation, thus the aerial operation realized operating equipment, compared with the mode of operation of existing direct touching operating equipment, more convenient and quicker, and make the recreational stronger of operation, there is better Consumer's Experience, in addition, because the present invention is without the need to redesigning existing operating equipment such as mobile phone, only need can realize function of the present invention at an additional control device of existing operating equipment, applicability is very strong, is easy to as user accepts.
Accompanying drawing explanation
Fig. 1 is the structural representation of inventive touch induction system one embodiment;
Fig. 2 is the schematic perspective view of inventive touch induction system one embodiment;
Fig. 3 is in another embodiment of inventive touch induction system, the schematic perspective view of control device;
Fig. 4 is the floor map of the touch sensing system shown in Fig. 2, wherein, illustrate only position transducer and mobile device in figure;
Fig. 5 is the floor map of the another embodiment of inventive touch induction system, wherein, illustrate only position transducer and mobile device in figure;
Fig. 6 is the floor map of the another embodiment of inventive touch induction system, wherein, illustrate only position transducer and mobile device in figure;
Fig. 7 is the floor map of the another embodiment of inventive touch induction system, wherein, illustrate only position transducer and mobile device in figure;
Fig. 8 is in the another embodiment of inventive touch induction system, the schematic diagram of the position relationship of induction coordinate system and screen coordinate system;
Fig. 9 is in the another embodiment of inventive touch induction system, the schematic diagram of the position relationship of induction coordinate system and screen coordinate system;
Figure 10 is in the another embodiment of inventive touch induction system, the schematic perspective view of control device.
Embodiment
The present invention is mainly used in the aerial touch-control of operating equipment such as mobile device (as panel computer, smart mobile phone etc.), desktop computer, notebook computer or the information display screen etc. realizing having touch screen function, does not namely need to touch the operation that the touch-screen of operating equipment can realize operating equipment.
Below in conjunction with drawings and embodiments, the present invention is described in detail.
Consult Fig. 1, in inventive touch induction system one embodiment, touch sensing system comprises control device 10 and operating equipment, and operating equipment can be mobile device 12, such as panel computer or smart mobile phone etc.Wherein, control device 10 is mainly used in making mobile device 12 can respond the operation of user.Control device 10 and mobile device 12 separate.
Control device 10 comprises position transducer 102 and the first communication interface 104, and mobile device 12 comprises main frame 122 and second communication interface 124.Position transducer 102 is for the aerial touch control operation responded to above it and then obtain aerial touch information, by the first communication interface 104, aerial touch information is sent to the second communication interface 124 of mobile device 12.Main frame 122 receives the aerial touch information of second communication interface 124, to operate according to aerial touch information.By the communication between the first communication interface 104 and second communication interface 124, to realize the communication between control device 10 and mobile device 12.First communication interface 104 and second communication interface 124 can be wireless communication interfaces, such as bluetooth, infrared, wifi communication interface, also can be wired communication interface, such as usb communication interface.
Wherein, aerial touch control operation refers to and carry out aerial operation outside mobile device 12, and then realizes the operation to mobile device 12 itself, and mobile device 12 is without the need to integrated traditional touch-screen in this case, only needs the screen possessing simple Presentation Function.Certainly, operating equipment also can be other the electronic equipment with touch screen function, such as, have the commercial advertisement screen of touch screen function, MP3 or desktop computer etc.When operating the operating equipment with touch screen function, traditional method of operating normally by touching medium as finger or felt pen touching touch the pictograph of screen display, operating equipment is by identifying that the position of touch point obtains touch information, to perform corresponding operation according to touch information, be such as the position at browser icon place in the position recognizing touch point, then perform the operation of open any browser.With traditional method of operating unlike, in embodiment of the present invention, can mobile device 12 be placed in the induction range of position transducer 102, touching medium such as finger or felt pen do not need the screen touching mobile device 12, but can be placed on outside mobile device 12, distance certain above such as screen, this distance does not answer the maximum distance of reaction of setover sensor 102, aerial touch information can be obtained according to aerial touch control operation thus when position transducer 102 senses the skyborne touch control operation of touching medium, then aerial touch information is passed through the first communication interface 104, second communication interface 124 sends to the main frame 122 of mobile device 12, main frame 122 can operate according to aerial touch information thus, thus by the effect of position transducer 102, the operation not needing user to touch mobile device 12 can to realize mobile device 12, make more convenient operation quick, improve the interest of operation, there is better Consumer's Experience.In addition, because the present invention is without the need to redesigning existing operating equipment such as mobile phone, only need can realize function of the present invention at an additional control device of existing operating equipment, applicability is very strong, is easy to as user accepts.
Possess in the electronic apparatus embodiment of touch screen function and the aerial touch controllable function of the present invention at the same time, two kinds of touch controllable functions can be enabled wherein a kind of and forbid another, also can enable two kinds simultaneously.
Certainly, mobile device 12 is also not limited to be have touch screen function equipment, can also be other the equipment without touch screen function, as long as can identify aerial touch information, and can carry out corresponding operating according to aerial touch information.
Wherein, the control device 10 of present embodiment can be a parametric controller, can position transducer 102 and the first communication interface 104 be arranged on platform, when carrying out aerial operation to mobile device 12, can mobile device 12 be placed on the platform, and be placed in the induction range of position transducer 102, in order to improve the sensitivity of induction, scope stronger for the induction of position transducer 102 can be marked on platform, therefore mobile device 12 only need be placed in label range by user.Now the finger of user can carry out aerial touch control operation to mobile device 12 above platform, without the need to handheld mobile device 12, the screen touching mobile device 12 is not needed yet, can obtain aerial touch information by the aerial touch control operation of position transducer 102 finger sensing, and then main frame 122 can carry out corresponding operating according to aerial touch information.
Consult Fig. 2, in another embodiment of inventive touch induction system, control device 10 can also be a carrying device, control device 10 and mobile device 12 separate, communication interface 104,124 is wireless communication interface.Particularly, control device 10 also comprises housing 106, and housing 106 is for carrying position transducer 102 and the first communication interface 104.Wherein, housing 106 comprises the first area 106-1 of setting position sensor 102, the second area 106-2 of holding movable equipment 12 and arranges the 3rd region 106-3 of the first communication interface 104.First area 106-1 is positioned at the periphery of second area 106-2, and namely position transducer 102 is positioned at mobile device 12 around.
Housing 106 can adopt plastic material to make, and certainly, also can be adopt other materials to make, such as metal or alloy material etc.Housing 106 can be the shell as mobile device 12, thus mobile device 12 can be nested on shell when in use.Wherein, the bottom of housing 106 is as second area 106-2, and for carrying mobile device 12, the surrounding of housing 106 is first area 106-1, mobile device 12 nested on housing 16 time first area 106-1 be positioned at around mobile device 12.As shown in Figure 2, the housing 106 of present embodiment is two claw-like containers, and the quantity of first area 106-1 is two, and second area 106-2 is as container bottom, and two first area 106-1 as chamber wall, and are connected by second area 106-2.Two first area 106-1 tilt with the claw forming housing 106, to be close to the periphery of mobile device 12 when mobile device 12 is placed on second area 106-2, to be fixedly clamped in housing 106 by mobile device 12 to mobile device 12 slight curvature.
Wherein, housing 106 can use elastic plastic material to make, its spatial accommodation can be less than the size of mobile device 12, and mobile device 12 is fixed in housing 106 by the elastic force produced when now can utilize housing 106 that deformation occurs when being placed in housing 106 by mobile device 12.
Certainly, mobile device 12 and housing 106 also can not interfix, and namely mobile device 12 is only bear against on the second area 106-2 of housing 106, and first area 106-1 and mobile device 12 are not close to.
Wherein, second area 106-2 is entity structure.3rd region 106-3 of housing 106 is arranged in second area 106-2, and namely the first communication interface 104 of control device 10 is arranged on the bottom of housing 106.Certainly, in other embodiments, such as shown in Figure 3, second area 106-2 also can be part hollow out, and circular dashed line part is as shown in Figure 3 hollow out, and now the 3rd region 106-3 can be arranged on the position of other entity structures of second area 106-2.By making second area 106-2 part hollow out, be conducive to the heat radiation of mobile device 12.Certainly, the 3rd region 106-3 is arranged on the 106-1 of first area.
In present embodiment, the quantity of the position transducer 102 of control device 10 is two, is primary importance sensor 102-1 and second place sensor 102-2 respectively.Two position transducers 102 are separately positioned on two first area 106-1.
Wherein, when mobile device 12 is placed in housing 106, the positional symmetry distribution of two first area 106-1 relative movement equipment 12, distributes to make the positional symmetry of two position transducer 102 relative movement equipment 12.In present embodiment, a first area 106-1 is positioned at a side of second area 106-2, and another first area 106-1 is positioned at another side relative with a side of described second area 106-2.Mobile device 12 such as mobile phone is generally rectangle, one side of described second area 106-2 is corresponding with the top of mobile device 12, another side of described second area 106-2 is corresponding below with mobile device 12, namely when mobile device 12 is placed on second area 106-2, composition graphs 4, primary importance sensor 102-1 is positioned at the side of mobile device 12 top, second place sensor 102-2 is positioned at the following side of mobile device 12, primary importance sensor 102-1 and second place sensor 102-2 with the cross central line of mobile device 12 screen for axis of symmetry is symmetrical, touch sensing system can be made thus more attractive in appearance.
Certainly, in other embodiments, two first area 106-1 can be set to the symmetrical of other as required relative to the position of mobile device 12, symmetrical with what make two position transducers 102 be other, such as by arranging the position of two first area 106-1 relative movement equipment 12, thus making two position transducers 102 lay respectively at the peripheral position at two diagonal angles of corresponding mobile device 12, two position transducers 102 are symmetrical with diagonal line, as shown in Figure 5.Also can be make two position transducers 102 lay respectively at the both sides on mobile device about 12 limit, and the position transducer 102 of every side is the point midway being positioned at mobile device 12 respective side, two position transducers 102 are symmetrical with the vertical center line of screen, as shown in Figure 6.
By making two first area 106-1, also namely two position transducers 102 are symmetrically distributed in mobile device 12 around, and touch sensing system can be made more attractive in appearance.Certainly, the position of two first area 106-1 relative movement equipment 12 may not be symmetrical, such as first area 106-1 can be positioned at the side on mobile device 12 left side or the right, another first area 106-1 can be positioned at mobile device 12 top or following side, with the side making one of them position transducer 102 be positioned at mobile device 12 left side or the right, another location sensor 102 is positioned at the top of mobile device 12 or following side, as shown in Figure 7.
Wherein, as shown in Figure 4, in figure, the region of two dotted portions represents the induction range of each position transducer 102 respectively, the induction range of each position transducer 102 at least covers 1/2nd mobile devices 12, namely the induction range of primary importance sensor 102-1 covers the upper half of mobile device 12, the induction range of second place sensor 102-2 covers the bottom half of mobile device 12, two empty collar regions as shown in the figure.Certainly, the mobile device that its induction range covers also can be other situations, can be such as that the induction range of a position transducer 102 only covers 1/4th mobile devices 12, the induction range of another position transducer 102 covers more than 3/4ths mobile devices, and whole mobile device 12 can be made to be positioned at induction range.When user carries out aerial touch control operation by finger to mobile device 12, normally operate at mobile device 12 place induction region, and mobile device 12 is in the induction range of position transducer 102, therefore can ensure that position transducer 102 can sense the aerial touch control operation of user, thus corresponding aerial touch information can be obtained and send to the main frame 122 of mobile device 12.
Wherein, the aerial touch information of present embodiment refers to the screen coordinate value of the screen coordinate system of touch point relative movement equipment 12 screen.For touch-screen, touch function normally realizes by obtaining the touching medium coordinate figure of touch points on screen on the touchscreen, and in present embodiment, because user's finger does not touch the screen of mobile device 12, but operate with aerial touch control manner, namely finger performs touch control operation aloft, responds to the screen coordinate value that aerial touch-control action obtains the touch point relative screen coordinate system pointed, and then obtain aerial touch information by position transducer 12.
Particularly, continue to consult Fig. 2, control device 10 also comprises the controller 108 be connected with two position transducers 102, and controller 108 is arranged on the bottom of housing 106, is namely arranged in second area 106-2, and it is connected with the first communication interface 104.Two position transducers 102 are specifically for obtaining the induction coordinate figure of the induction coordinate system of the touch point relative position sensor 102 above mobile device 12 screen itself, and this induction coordinate figure is the coordinate figure of touch point in the plane parallel with mobile device 12 screen.
Wherein, position transducer 102 is for having the sensor of sensor function and camera function, it comprises camera and infrared sensor, infrared sensor is used for detecting above screen, whether there is the finger of touching medium as user in real time, camera carries out when there is touching medium above infrared sensor detects screen making a video recording to obtain the image about touching medium, can analyze the image of touching medium thus, to obtain the touch point coordinate figure in the picture of touching medium, and then obtain the induction coordinate figure of induction coordinate system of touch point relative position sensor 102.Such as, when touching medium is for finger, touch point is generally the fingertip area of finger, therefore the predeterminable characteristic information characterizing the fingertip area of finger, by analyzing image after obtaining the image about finger, to find the image information matched with the characteristic information of the fingertip area preset, namely the position of image section in whole image frame corresponding to this image information be touch point position in the picture, can touch point be determined thus, and then touch point coordinate figure in the picture can be obtained.
Wherein, each position transducer 102 has itself induction coordinate system, the reference point of the induction coordinate system of each position transducer 102 may not be identical, and the induction coordinate figure that therefore each position transducer 102 obtains is the induction coordinate system of this position transducer 102 relatively itself.
The induction coordinate figure that controller 108 obtains for the load position sensor 102 that circulates.As shown in Figure 4, the induction range of each position transducer 102 is only cover part mobile device 102, therefore be not the touching medium that each position transducer 102 can both sense above screen, namely, when user carries out aerial touch control operation above screen, at some time, not each position transducer 102 can both obtain the induction coordinate figure of touch point itself induction coordinate system relative.In addition, may overlap be there is in the induction range of two position transducers 102, namely namely when user carries out aerial touch control operation, may can sense touching medium by two position transducers 102 simultaneously, also all may obtain and have induction coordinate figure by two position transducers 102.
Therefore, when controller 108 only reads the induction coordinate figure that a position transducer 102 obtains, such as shown in Figure 4, touch point A is only positioned at the induction range at primary importance sensor 102-1 place, namely now aerial touch control operation is only in the induction range of primary importance sensor 102-1, another position transducer 102-2 cannot sense aerial touch control operation, therefore be only that primary importance sensor 102-1 detection has sensed data, be the induction coordinate figure (x of touch point A, y), this Time Controller 108 only reads the induction coordinate figure (x of primary importance sensor 102-1, y), and according to the induction coordinate figure (x read, y) screen coordinate value of the screen coordinate system of touch point A relative movement equipment 12 screen is calculated.Controller 108 is also for sending to the second communication interface 124 of mobile device 12 by the first communication interface 104 as aerial touch information using the screen coordinate value calculated, to send to main frame 122 by second communication interface 124, and then main frame 122 operates according to aerial touch information, realize the aerial operation of mobile device 12 thus, the operation namely not needing touching medium to touch screen can to realize operating equipment 12.
When controller 108 reads the induction coordinate figure that plural position transducer 102 obtains respectively, such as shown in Figure 4, touch point B is positioned at the overlapping region of the induction range of primary importance sensor 102-1 and second place sensor 102-2, the induction coordinate figure of the induction coordinate system of the touch point B relative first position sensor 102-1 of now primary importance sensor 102-1 acquisition is (x1, y1), the induction coordinate figure of the induction coordinate system of the touch point B relative second position sensor 102-2 that second place sensor 102-2 obtains is (x2, y2).Controller 108 reads the induction coordinate figure (x1 of two position transducers 102-1,102-2, y1), (x2, y2) time, the induction coordinate figure that the position transducer choosing intended level according to the priority level of two position transducers 102-1,102-2 obtains, and the screen coordinate value of the screen coordinate system of touch point B relative movement equipment 12 screen is calculated according to the induction coordinate figure that the position transducer of intended level obtains.Controller 108 is also for sending to the second communication interface 124 of mobile device 12 by the first communication interface 104 as aerial touch information using the screen coordinate value calculated, to send to main frame 122 by second communication interface 124, and then main frame 122 operates according to aerial touch information.
Further, in present embodiment, the priority level of two position transducers 102 is followed successively by primary importance sensor 102-1, second place sensor 102-2 from high in the end.Controller 108 is when reading the induction coordinate figure that two position transducers 102 obtain respectively, and the induction coordinate figure can choosing the position transducer of highest level corresponding carries out calculating screen coordinate value.Therefore, in above-mentioned situation, controller 108 is reading the induction coordinate figure (x1 of first sensor 102-1 and the second sensor 102-2, y1), (x2, y2) time, according to the rank of first sensor 102-1 and the second sensor 102-2 height, the induction coordinate figure (x1, y1) choosing the first sensor 102-1 of highest level as effective coordinate figure to calculate the screen coordinate value of the screen coordinate system of touch point B relative movement equipment 12 screen.Certainly, the priority level order of two position transducers 102 also can be second place sensor 102-2, primary importance sensor 102-1 from high to low.In addition, intended level also can be minimum rank, also can not first intended level, and judges voluntarily in practical operation or pre-conditionedly to select according to other, does not limit this.
Further, the induction coordinate figure read, specifically for the mapping relations between the induction coordinate system of the position transducer corresponding to the induction coordinate figure that reads and the screen coordinate system of mobile device 12 screen, is converted to the screen coordinate value of the screen coordinate system of touch point relative movement equipment 12 screen by controller 108.Specifically, when controller 108 only reads the induction coordinate figure of position transducer 102 correspondence, such as only read the induction coordinate figure (x1 of primary importance sensor 102-1, y1), now according to the mapping relations between the induction coordinate system of primary importance sensor 102-1 and the screen coordinate system of mobile device 12, the screen coordinate value that coordinate figure (x1, y1) is converted into the screen coordinate system of mobile device 12 will be responded to; When controller 108 reads the induction coordinate figure of two position transducer 102 correspondences, such as read the induction coordinate figure (x1 of first sensor 102-1 and the second sensor 102-2, y1, (x2, y2), when choosing the induction coordinate figure (x1 of primary importance sensor 102-1, y1) time as effective coordinate figure, now according to the mapping relations between the induction coordinate system of primary importance sensor 102-1 and the screen coordinate system of mobile device 12, the screen coordinate value that coordinate figure (x1, y1) is converted into the screen coordinate system of mobile device 12 will be responded to.
Wherein, the induction coordinate system of different its correspondences of position transducer may be not identical yet, therefore the mapping relations between the induction coordinate system of its correspondence of position transducer of different model or performance and the screen coordinate system of mobile device 12 screen also may not be identical, and the position of same position sensor relative movement equipment 12 is not identical, its induction coordinate system is not identical with the mapping relations between screen coordinate system yet, therefore, after the position of position transducer and its relative movement equipment 12 is determined, mapping relations between the induction coordinate system of position transducer and the screen coordinate system of mobile device 12 screen are also just determined, the mapping relations that therefore can obtain between the induction coordinate system of position transducer and the screen coordinate system of mobile device 12 screen according to the position of the characteristic of position transducer self and position transducer relative movement equipment 12.
In order to induction coordinate figure and the concrete conversion method of screen coordinate value are described, be described exemplifying two kinds of different mapping relations below.Wherein, be that example is described with the induction coordinate of primary importance sensor 102-1.
The first mapping relations: it should be noted that, touch point is positioned at above screen, therefore the induction coordinate of primary importance sensor 102-1 is parallel with screen and is arranged in the induction coordinate system of the plane above screen, and two coordinate systems are respectively and are arranged in two planes be parallel to each other.After the position of primary importance sensor 102-1 relative movement equipment 12 is determined, the true origin C of induction coordinate system also just determines.As shown in Figure 8, when the induction coordinate system of primary importance sensor 102-1 is all identical with the proportionate relationship of the screen coordinate system of mobile device 12 screen, the scale unit of the such as horizontal ordinate of primary importance sensor 102-1 is 1, the scale unit of ordinate is 2, then the scale unit of the horizontal ordinate of screen coordinate system is also 1, the scale unit of ordinate is also 2, in addition, when the true origin D of the screen coordinate system of vertical projection in the plane at screen place of the true origin C of the induction coordinate system of primary importance sensor 102-1 and screen does not overlap, and described true origin C is when being positioned at the left side of described true origin D, according to the relation responded between the proportionate relationship of coordinate system and the proportionate relationship of screen coordinate system (namely both proportionate relationships are identical), and the position at the induction true origin C position of coordinate system and the true origin D place of screen coordinate system, can obtain the mapping relations responded between coordinate system and screen coordinate system is: (x, y)=(x1-dx, y1-dy), wherein, (x, y) be the screen coordinate value of touch point E relative screen coordinate system, (x1, y1) be the induction coordinate figure of touch point E relative induction coordinate system, dx be by true origin C vertical projection when the plane at screen place, true origin C and true origin D distance value in the direction of the x axis, dy be by true origin C vertical projection when the plane at screen place, true origin C and true origin D distance value in the y-axis direction.Thus, the mapping relations between the induction coordinate system of primary importance sensor 102-1 and the screen coordinate system of mobile device 12 screen can be obtained, when induction coordinate figure corresponding to primary importance sensor 102-1 chosen by controller 108, can convert according to above-mentioned mapping relations and obtain screen coordinate value.
The second mapping relations: as shown in Figure 9, when the induction coordinate system of primary importance sensor 102-1 is not identical with the proportionate relationship of the screen coordinate system of mobile device 12 screen, the ratio of the horizontal ordinate scale unit in both coordinate systems is fx, the ratio of ordinate scale unit is fy, the scale unit of the such as horizontal ordinate of primary importance sensor 102-1 is 3, the scale unit of ordinate is also 3, and the least unit of the horizontal ordinate of screen coordinate system is 1, the least unit of ordinate is also 1, and now fx and fy is 3; And when the true origin D of the screen coordinate system of vertical projection in the plane at screen place of the true origin C of the induction coordinate system of primary importance sensor 102-1 and screen coincides, namely reference point is equivalent to identical, now, according to the ratio relation of scale unit of induction coordinate system and screen coordinate system, can obtain the mapping relations responded between coordinate system and screen coordinate system is: (x, y)=(x1/fx, y1/fy).When induction coordinate figure corresponding to primary importance sensor 102-1 chosen by controller 108, can convert according to above-mentioned mapping relations and obtain screen coordinate value.The above-mentioned mapping relations only illustrating two kinds of situations, the mapping relations for other situations can obtain according to the principle of similitude, do not enumerate this.
No matter be the first above-mentioned mapping relations or the second mapping relations, the situation of existence two kinds or more mapping relations even simultaneously, touch point can be limited to the screen ranges of mobile device 12, namely, touch point above the screen orthogonal projection being defined in mobile device 12 is only effective touch point, it is invalid that periphery touch control operation outside above the screen orthogonal projection exceeding mobile device 12 is defined as, and now for user, touch-control scope is in the plane the same with conventional touch screen;
Certainly, though also can define exceed mobile device 12 screen orthogonal projection above, its touch point is also effective, in this case, is divided into again two aspects:
1) touch point outside above the screen orthogonal projection being defined in mobile device 12 and between the screen of mobile device 12 without mapping relations, but auxiliary control can be carried out, such as once perceive touch point and move to outside above screen orthogonal projection above screen orthogonal projection, namely carry out the operations such as page turning;
2) unified mapping relations are formed between the touch point outside above the screen orthogonal projection being defined in mobile device 12 and above screen orthogonal projection and the screen of mobile device 12, even if operate outside now above screen orthogonal projection, the screen of mobile device 12 also can show its operation vestige, respond corresponding screen touch command, facilitate user to carry out exceeding the aerial touch-control of screen size on a large scale.
In addition, for different position transducers, the induction coordinate figure that it detects also can by the impact of the distance value between touch point and screen, namely the height of finger touch point distance screen is different, the induction abscissa value of the touch point relative induction coordinate system obtained also can slightly difference, therefore, in order to make detected induction coordinate figure more accurate, position transducer 102 can also detect the distance of touch point to screen, to determine according to this distance to respond to abscissa value, such as according to the errors table between the distance preset and horizontal ordinate, coordinate figure is revised, to improve accuracy.
Wherein, the aerial touch control operation of user to mobile device 12 can be the operation of aerial sliding cursor of mouse or aerial sliding unlocking operation etc.
Such as, when finger moves above the screen of mobile device 12, position transducer 102 constantly obtains the multiple induction coordinate figures of finger touch point in moving process, controller 108 calculates multiple corresponding screen coordinate value according to effective induction coordinate figure, mobile device 12 makes the cursor of mouse of mobile device 12 move according to the track be made up of multiple screen coordinate value according to multiple screen coordinate value, thus can realize the operation dragging cursor of mouse in the air.
And for example, when realizing the slip unlocking operation of mobile device 12, mobile device 12, according to received screen coordinate value, obtains pointing the curve slided aloft.By the curve of default unblock, the curve obtained and default curve are contrasted, when two curve similarities are not less than a threshold value such as 80% or 90%, then think that the manipulation operation of user is unlocking operation, now mobile device 12 performs unlocking function.
In the respective embodiments described above, aerial touch information is controller to carry out processing the rear screen coordinate value obtained to induction coordinate figure, in other embodiments, aerial touch information also can be the induction coordinate figure that position transducer obtains, the function that controller realizes then can be realized by mobile device, namely position transducer obtain touch point relatively its induction coordinate figure responding to coordinate system with after obtaining aerial touch information, the second communication interface of mobile device will be sent to as the induction coordinate figure of aerial touch information by the first communication interface, the main frame of mobile device calculates the screen coordinate value of the screen coordinate system of touch point relative screen according to this induction coordinate figure, and operate according to this screen coordinate value.
In addition, also can not convert according to the mapping relations between induction coordinate system and screen coordinate system and obtain the screen coordinate value of the screen coordinate system of touch point relative screen, such as can according to the position of position transducer relative movement equipment, and the distance between touch point and position transducer calculates this screen coordinate value.
Consult Figure 10, in the another embodiment of inventive touch induction system, control device is mobile device overcoat 20.Mobile device overcoat 20 comprises collecting mobile device (scheming not shown) first housing 202 and as the second housing 204 renovated.First housing 202 as the housing of control device to carry the first communication interface 208 and two position transducers 206.Wherein, the first housing 202 comprises the first area 202-1 of setting position sensor 206 and the first communication interface 208, and the second area 202-2 of holding movable equipment.
Certainly, in other embodiments, mobile device overcoat also can be only have the first housing, or control device can mobile device containment vessel.
In alternate embodiment of the present invention, the front-facing camera of mobile device can also be utilized as one of them position transducer, then coordinate other position transducers on control device to realize the aerial touch-control to mobile device.Now the front-facing camera of mobile device also has infrared induction function, and it both can as the front-facing camera of mobile device, again can as position transducer.
The present invention also provides an embodiment of control device, and wherein, control device is the control device described in above-mentioned arbitrary embodiment.
The present invention also provides an embodiment of mobile device, and wherein mobile device is the mobile device described in above-mentioned arbitrary embodiment.
In each embodiment of the present invention, position transducer is not limited to the combination of infrared sensor and camera, can also be any equipment that can detect aerial touch control operation such as range sensor, carry out utilizing two position transducers controlling in the scheme of touch control operation detection, also the mode of selecting the coordinate figure that selection position transducer detects can not be adopted, and adopt the data detected in conjunction with two position transducers to carry out computing to obtain the way of an integrated value, to improve precision, such as utilize triangle operational formula, two distance values of the same object that two position transducers are detected, and the angle value of distance value between these two position transducers or object each position transducer relatively, triangle operational formula is utilized to obtain the coordinate figure of object, even, the coordinate plane of position transducer itself is not necessarily parallel to the plane of screen, each or often organize position transducer define a touch surface, this one or more touch surface is not parallel to screen plane, make not only can realize aerial touch-control, three-dimensional multiaspect touch-control can also be realized.
In each embodiment of the present invention, mapping relations between the induction coordinate system of the position transducer of induction corresponding to coordinate figure and the screen coordinate system of mobile device screen can pre-set, can certainly by collecting device related hardware information by calculating, when being applied to different size mobile device screen or different resolution screen to make the present invention, arrange without the need to user, automatically can mate, make application of the present invention stronger.
The foregoing is only embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize instructions of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (11)
1. a touch sensing system, is characterized in that:
Comprise control device and operating equipment, described control device comprises two position transducers and the first communication interface, and described operating equipment comprises main frame and second communication interface;
Described two position transducers are for the aerial touch control operation responded to above it and then obtain aerial touch information, by described first communication interface, described aerial touch information is sent to the second communication interface of described operating equipment, operates according to described aerial touch information to make the main frame of described operating equipment.
2. touch sensing system according to claim 1, is characterized in that:
Described control device comprises the controller be connected with described two position transducers;
Described two position transducers are specifically for obtaining the induction coordinate figure of the induction coordinate system of the touch point relative position sensor above operating equipment screen itself;
Described controller is used for when only reading the induction coordinate figure that a position transducer obtains, the screen coordinate value of the screen coordinate system of the relatively described operating equipment screen of described touch point is calculated according to the described induction coordinate figure read, and for when reading the induction coordinate figure that two position transducers obtain respectively, the induction coordinate figure that the position transducer choosing intended level according to the priority level of described two position transducers obtains, and the screen coordinate value of the screen coordinate system of the relatively described operating equipment screen of described touch point is calculated according to the induction coordinate figure that the position transducer of described intended level obtains,
Described controller also for the described screen coordinate value calculated is sent to described operating equipment as aerial touch information, operates according to described screen coordinate value to make described operating equipment;
Described control device and described operating equipment relatively independent, described two position transducers are positioned at around described operating equipment.
3. touch sensing system according to claim 2, is characterized in that,
Described induction coordinate figure is the coordinate figure of described touch point in the plane parallel with described operating equipment screen, the described induction coordinate figure read, specifically for the mapping relations between the induction coordinate system of the position transducer corresponding to the described induction coordinate figure that reads and the screen coordinate system of operating equipment screen, is converted to the screen coordinate value of the screen coordinate system of the relatively described operating equipment screen of described touch point by described controller.
4., for a control device for mobile device, it is characterized in that:
Described control device comprises housing, the first communication interface and two position transducers, described housing comprises the first area arranging described two position transducers, the second area placing described mobile device and arranges the 3rd region of described first communication interface, and described first area is positioned at the periphery of described second area;
Described two position transducers are for the aerial touch control operation responded to above it and then obtain aerial touch information, by described first communication interface, described aerial touch information is sent to described mobile device, operates according to described aerial touch information to make described mobile device.
5. control device according to claim 4, is characterized in that,
Described control device comprises the controller be connected with described two position transducers;
Described two position transducers are specifically for obtaining the induction coordinate figure of the induction coordinate system of the touch point relative position sensor above mobile device screen itself;
Described controller is used for when only reading the induction coordinate figure that a position transducer obtains, the screen coordinate value of the screen coordinate system of the relatively described mobile device screen of described touch point is calculated according to the described induction coordinate figure read, and for when reading the induction coordinate figure that two position transducers obtain respectively, the induction coordinate figure that the position transducer choosing intended level according to the priority level of described two position transducers obtains, and the screen coordinate value of the screen coordinate system of the relatively described mobile device screen of described touch point is calculated according to the induction coordinate figure that the position transducer of described intended level obtains,
Described controller also for the described screen coordinate value calculated is sent to described mobile device as aerial touch information, operates according to described screen coordinate value to make described mobile device;
Described control device and described mobile device relatively independent, described two position transducers are positioned at around described mobile device.
6. control device according to claim 5, is characterized in that,
Described induction coordinate figure is the coordinate figure of described touch point in the plane parallel with described mobile device screen, the described induction coordinate figure read, specifically for the mapping relations between the induction coordinate system of the position transducer corresponding to the described induction coordinate figure that reads and the screen coordinate system of mobile device screen, is converted to the screen coordinate value of the screen coordinate system of the relatively described mobile device screen of described touch point by described controller.
7. control device according to claim 5, is characterized in that,
Described two position transducers are symmetrically distributed in around described mobile device.
8. control device according to claim 7, is characterized in that,
Position transducer described in one of them is positioned at the side of described mobile device top, position transducer described in another is positioned at the following side of described mobile device, two described position transducers with the cross central line of described mobile device screen for axis of symmetry is symmetrical.
9. control device according to claim 4, is characterized in that,
Described control device is mobile device overcoat, described mobile device overcoat comprise the described mobile device of collecting the first housing and as the second housing renovated, described first housing as the housing of described control device to carry described first communication interface and two position transducers.
10. control device according to claim 4, is characterized in that,
Described first communication interface is wireless communication interface or usb communication interface.
11. 1 kinds of mobile devices, is characterized in that, comprise main frame and second communication interface;
The aerial touch information that two position transducers that described second communication interface is used for receiving control device are responded to the aerial touch control operation above it and then obtained, described main frame is used for operating according to described aerial touch information.
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