CN102915161A - Infrared touch device and identification method thereof - Google Patents
Infrared touch device and identification method thereof Download PDFInfo
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- CN102915161A CN102915161A CN2012104296320A CN201210429632A CN102915161A CN 102915161 A CN102915161 A CN 102915161A CN 2012104296320 A CN2012104296320 A CN 2012104296320A CN 201210429632 A CN201210429632 A CN 201210429632A CN 102915161 A CN102915161 A CN 102915161A
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Abstract
The invention provides an infrared touch device and an identification method thereof. The infrared touch device comprises a touch screen as well as a first infrared receiving/transmitting module and a second infrared receiving/transmitting module both provided with a flare angle larger than 90 degrees, which are respectively arranged at two adjacent angles of the touch screen and used for transmitting infrared light and receiving reflected infrared light; and a positioning unit is also comprised and used for calculating the coordinate of a touch point according to a preset rule and infrared light data received by the first infrared receiving/transmitting module and the second infrared receiving/transmitting module. According to the invention, a plurality of groups of infrared transmitting tubes and a plurality of groups of infrared receiving tubes are not required to arrange, and the advantage of reduction of the cost and power consumption is achieved.
Description
Technical field
The present invention relates to the infrared touch technical field, specially refer to a kind of infrared touching device and recognition methods thereof.
Background technology
Touch-screen has been widely used in the consumer electronics industries such as computing machine, mobile phone, audio/video player and electronic game as a kind of novel input equipment, brings great convenience to the user, also can be used for the fields such as military project and control of industrialization.Infrared touch screen apparatus of the prior art, with reference to shown in Figure 1, Fig. 1 is infrared transmitting tube in the prior art infrared touch screen apparatus and the layout synoptic diagram of infrared receiving tube, it comprises many group infrared transmitting tubes 100 and many group infrared receiving tubes 200, and pass through many group infrared transmitting tubes 100 and organize infrared receiving tubes 200 more to form the correlation systems, transversal scanning and longitudinal scanning form the point of crossing, whether the sweep test zone has certain point of crossing to be blocked successively, thereby judged whether that the user inputs, this scan mode only can a scanning finite point of crossing, if increase the quantity of point of crossing, the essential more infrared transmitting tube of use and infrared receiving tube are so that cost increases.
Summary of the invention
Fundamental purpose of the present invention has provided a kind of infrared touching device, is intended to reduce cost and realizes full screen scanning.
The embodiment of the invention discloses a kind of infrared touching device, comprise touch-screen, also comprise:
Spread angle is separately positioned on two adjacent angular places of described touch-screen at the first infrared receiving/transmission module more than 90 ° and the second infrared receiving/transmission module, is used for emission Infrared and reception through the Infrared of reflection;
And positioning unit, be used for calculating the coordinate of touch point according to presetting rule and according to the Infrared data of described the first infrared receiving/transmission module and the reception of the second infrared receiving/transmission module.
Whether preferably, described infrared touching device also comprises the first judging unit, be used for changing in the Preset Time scope according to the coordinate of described touch point, judges that touch operation is the direction of point touching operation or slip touch operation and slip.
Preferably, described infrared touching device also comprises:
Timing unit is used for recording the touch time that described point touching operates;
The second judging unit, be used for according to the described touch time judge described point touching operation be long by or short by.
Infrared touching device disclosed in this invention, launch Infrared by the first infrared receiving/transmission module and the second infrared receiving/transmission module to touch-screen, and because the first infrared receiving/transmission module and the second infrared receiving/transmission module are separately positioned on two adjacent angular places of touch-screen, its spread angle has guaranteed on the one hand that all more than 90 ° the Infrared of the first infrared receiving/transmission module and the second infrared receiving/transmission module emission can cover described touch-screen; The intersection point that has guaranteed on the other hand the Infrared of the first infrared receiving/transmission module and the second infrared receiving/transmission module emission only has one.When touch-screen is touched, the touch point reflexes to the Infrared of the first infrared receiving/transmission module emission the first infrared receiving/transmission module and the Infrared of the second infrared receiving/transmission module emission is reflexed to the second infrared receiving/transmission module, the first infrared receiving/transmission module becomes corresponding signal to be sent to positioning unit the Infrared data-switching that receives with the second infrared receiving/transmission module simultaneously, positioning unit calculates the coordinate of touch point according to presetting rule, has namely realized the location to the touch point.Correlation mode relatively of the prior art, the present invention need not to arrange many group infrared transmitting tubes and many group infrared receiving tubes, has the reduction cost, reduces the advantage of power consumption.
The embodiment of the invention also discloses another kind of infrared touching device, comprise touch-screen, also comprise:
Spread angle is at the first infrared receiving/transmission module more than 90 °, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module, any two Liang Jiaochu that are separately positioned on described touch-screen in described the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module are used for emission Infrared and reception through the Infrared of reflection;
And positioning unit, be used for calculating the coordinate of touch point according to presetting rule and according to the Infrared data that described the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module receive.
Preferably, any two the two relative angle places that are separately positioned on described touch-screen in described the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module.
Whether preferably, described infrared touching device also comprises the first judging unit, be used for changing in the Preset Time scope according to the coordinate of described touch point, judges that touch operation is the direction of point touching operation or slip touch operation and slip.
Preferably, described infrared touching device also comprises:
Timing unit is used for recording the touch time that described point touching operates;
The second judging unit, be used for according to the described touch time judge described point touching operation be long by or short by.
Infrared touching device disclosed in this invention, launch Infrared by the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module to touch-screen, and because the spread angle of the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module is all more than 90 °, two Liang Jiaochu that are separately positioned on touch-screen are wherein arranged, guaranteed that on the one hand the Infrared of the first infrared receiving/transmission module, the second infrared receiving/transmission module and the emission of the 3rd infrared receiving/transmission module can cover described touch-screen; The intersection point that has guaranteed on the other hand the Infrared of the first infrared receiving/transmission module, the second infrared receiving/transmission module and the emission of the 3rd infrared receiving/transmission module only has one.When touch-screen is touched, the touch point reflexes to the first infrared receiving/transmission module with the Infrared of the first infrared receiving/transmission module emission, the Infrared of the second infrared receiving/transmission module emission is reflexed to the second infrared receiving/transmission module and the Infrared of the 3rd infrared receiving/transmission module emission is reflexed to the 3rd infrared receiving/transmission module, while the first infrared receiving/transmission module, the second infrared receiving/transmission module becomes corresponding signal to be sent to positioning unit the Infrared data-switching that receives with the 3rd infrared receiving/transmission module, positioning unit calculates the coordinate of touch point according to presetting rule, has namely realized the location to the touch point.Correlation mode relatively of the prior art, the present invention need not to arrange many group infrared transmitting tubes and many group infrared receiving tubes, has the reduction cost, reduces the advantage of power consumption.
The embodiment of the invention also discloses a kind of recognition methods of infrared touching device, may further comprise the steps:
Start the scanning of the first infrared receiving/transmission module and the second infrared receiving/transmission module, the spread angle of wherein said the first infrared receiving/transmission module and the second infrared receiving/transmission module is all more than 90 ° and be separately positioned on two adjacent angular places of touch-screen;
Judge whether to occur touch event, if then calculate the coordinate of touch point according to presetting rule and according to the Infrared data of the first infrared receiving/transmission module and the reception of the second infrared receiving/transmission module.
Preferably, the recognition methods of described infrared touching device is further comprising the steps of:
Whether the coordinate of judging described touch point changes in the Preset Time scope, if not, judges that then touch operation is the point touching operation; If judge that then touch operation is the direction of slip touch operation and slip.
Preferably, judging that touch operation is further comprising the steps of after being the point touching operation:
The record sustained touch time;
According to the described touch time, judge the operation of described point touching be long by or short by.
The embodiment of the invention also discloses the recognition methods of another kind of infrared touching device, may further comprise the steps:
Start the first infrared receiving/transmission module, the second infrared receiving/transmission module and the scanning of the 3rd infrared receiving/transmission module, the spread angle of wherein said the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module is more than 90 °, wherein any two Liang Jiaochu that are separately positioned on touch-screen;
Judge whether to occur touch event, if then calculate the coordinate of touch point according to presetting rule and according to the Infrared data that the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module receive.
Preferably, the recognition methods of described infrared touching device is further comprising the steps of:
Whether the coordinate of judging described touch point changes in the Preset Time scope, if not, judges that then touch operation is the point touching operation; If judge that then touch operation is the direction of slip touch operation and slip.
Preferably, judging that touch operation is further comprising the steps of after being the point touching operation:
The record sustained touch time;
According to the described touch time, judge the operation of described point touching be long by or short by.
Description of drawings
Fig. 1 is infrared transmitting tube in the prior art infrared touch screen apparatus and the layout synoptic diagram of infrared receiving tube;
Fig. 2 is the layout synoptic diagram of the first infrared receiving/transmission module and the second infrared receiving/transmission module in infrared touching device the first embodiment of the present invention;
Fig. 3 is the layout synoptic diagram of the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module in infrared touching device the second embodiment of the present invention;
Fig. 4 is the schematic flow sheet of recognition methods first embodiment of infrared touching device of the present invention;
Fig. 5 is the schematic flow sheet of recognition methods second embodiment of infrared touching device of the present invention;
Fig. 6 is the schematic flow sheet of recognition methods the 3rd embodiment of infrared touching device of the present invention;
Fig. 7 is the schematic flow sheet of recognition methods the 4th embodiment of infrared touching device of the present invention;
Fig. 8 is the schematic flow sheet of recognition methods the 5th embodiment of infrared touching device of the present invention;
Fig. 9 is the schematic flow sheet of recognition methods the 6th embodiment of infrared touching device of the present invention.
The realization of the object of the invention, functional characteristics and advantage are described further with reference to accompanying drawing in connection with embodiment.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The invention discloses a kind of infrared touching device, can be with reference to Fig. 2, Fig. 2 is the layout synoptic diagram of the first infrared receiving/transmission module and the second infrared receiving/transmission module in infrared touching device the first embodiment of the present invention.It comprises touch-screen 1, the first infrared receiving/transmission module 21 and the second infrared receiving/transmission module 22, and the positioning unit (not shown); Touch-screen 1 provides a touch area, and after touch-screen 1 was touched, positioning unit calculated the coordinate of touch point according to presetting rule and according to the Infrared data of the first infrared receiving/ transmission module 21 and 22 receptions of the second infrared receiving/transmission module.The first infrared receiving/transmission module 21 and the second infrared receiving/transmission module 22 are used for the emission Infrared and receive Infrared through reflection, but wherein the spread angle of infrared receiving/transmission module refers to the angular range of the Infrared overlay area of infrared receiving/transmission module emission.For touch-screen square in the prior art 1, need a spread angle could cover whole screen at the infrared receiving/transmission module more than 90 °, namely use minimum infrared receiving/transmission module to reach the purpose that covers whole screen.Can determine a plurality of touch points according to the Infrared data that an infrared receiving/transmission module receives, its principle is infrared distance measurement, and take this distance that records as radius, do circular arc take infrared receiving/transmission module position as initial point, so need to arrange the coordinate that at least two infrared receiving/transmission modules come unique definite touch point.In summary, the spread angle of the first infrared receiving/transmission module 21 and the second infrared receiving/transmission module 22 is all more than 90 °, and be separately positioned on two adjacent angular places of described touch-screen 1, guaranteed that on the one hand the Infrared of the first infrared receiving/ transmission module 21 and 22 emissions of the second infrared receiving/transmission module can cover described touch-screen 1; The intersection point that has guaranteed on the other hand the Infrared of the first infrared receiving/ transmission module 21 and 22 emissions of the second infrared receiving/transmission module only has one.
Infrared touching device disclosed in this invention, launch Infrared by the first infrared receiving/transmission module 21 and the second infrared receiving/transmission module 22 to touch-screen 1, and because the first infrared receiving/transmission module 21 and the second infrared receiving/transmission module 22 are separately positioned on two adjacent angular places of touch-screen 1, its spread angle has guaranteed on the one hand that all more than 90 ° the Infrared of the first infrared receiving/ transmission module 21 and 22 emissions of the second infrared receiving/transmission module can cover described touch-screen 1; The intersection point that has guaranteed on the other hand the Infrared of the first infrared receiving/ transmission module 21 and 22 emissions of the second infrared receiving/transmission module only has one.When touch-screen 1 is touched, the touch point reflexes to the Infrared of the first infrared receiving/transmission module 21 emission the first infrared receiving/transmission module 21 and the Infrared of the second infrared receiving/transmission module 22 emissions is reflexed to the second infrared receiving/transmission module 22, the first infrared receiving/transmission module 21 becomes corresponding signal to be sent to positioning unit the Infrared data-switching that receives with the second infrared receiving/transmission module 22 simultaneously, positioning unit calculates the coordinate of touch point according to presetting rule, has namely realized the location to the touch point.Correlation mode relatively of the prior art, the present invention need not to arrange many group infrared transmitting tubes and many group infrared receiving tubes, has the reduction cost, reduces the advantage of power consumption.
Certainly the invention is not restricted to only arrange two infrared receiving/transmission modules, at the spread angle of the first infrared receiving/transmission module 21 and the second infrared receiving/transmission module 22 all more than 90 °, and when being separately positioned on two adjacent angular place of described touch-screen 1, can set up the infrared receiving/transmission module in other any positions.
In specific embodiment, infrared touching device of the present invention also comprises the first judging unit, whether the touch point coordinate that this first judging unit is used for calculating according to positioning unit changes in the Preset Time scope, judges that touch operation is the direction of point touching operation or slip touch operation and slip.When touch point coordinate change in the Preset Time scope that positioning unit calculates, then this touch operation of the first judgment unit judges is the point touching operation; When touch point coordinate that positioning unit calculates in the Preset Time scope change has occured, then this touch operation of the first judgment unit judges is the slip touch operation, and according to the variation of touch point coordinate, judge the direction of sliding, as left, to the right, slide up or down.For example, when touch point coordinate that positioning unit calculates in 3S clock (this time can according to the design of actual functional capability needs) change has occured, then this touch operation of the first judgment unit judges is the slip touch operation; When touch point coordinate that positioning unit calculates in the 3S clock change has not occured, then this touch operation of the first judgment unit judges is the point touching operation.
In specific embodiment, infrared touching device of the present invention also comprises timing unit and the second judging unit, and timing unit is used for the touch time that touch operation clicked in record, the second judging unit be used for according to the touch time judge click touch operation be long by or short by.When touch time of the point touching operation of timing unit record less than preset value, then this point touching operation of the second judgment unit judges be short by; When touch time of the point touching operation of timing unit record greater than preset value and in the Preset Time scope, then this point touching operation of the second judgment unit judges be long by.For example, when touch time of the point touching operation of timing unit record less than 2S, then this point touching operation of the second judgment unit judges be short by; When touch time of the point touching operation of timing unit record greater than 2S, then this point touching operation of the second judgment unit judges be long by.
One or more can being arranged in the processor in positioning unit in the present embodiment, the first judging unit, timing unit and the second judging unit also can be independent of the processor setting.
The invention also discloses a kind of infrared touching device, with reference to Fig. 3, Fig. 3 is the layout synoptic diagram of the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module in infrared touching device the second embodiment of the present invention.It comprises touch-screen 1, the first infrared receiving/transmission module 21, the second infrared receiving/transmission module 22 and the 3rd infrared receiving/transmission module 23, and the positioning unit (not shown); Touch-screen 1 provides a touch area, after touch-screen 1 was touched, positioning unit calculated the coordinate of touch point according to presetting rule and according to the Infrared data that the first infrared receiving/transmission module 21, the second infrared receiving/transmission module 22 and the 3rd infrared receiving/transmission module 23 receive.The first infrared receiving/transmission module, the second infrared receiving/transmission module 22 and the 3rd infrared receiving/transmission module 23 are used for emission Infrared and the Infrared of reception through reflecting, the first infrared receiving/transmission module 21, the spread angle of the second infrared receiving/transmission module 22 and the 3rd infrared receiving/transmission module 23 is all more than 90 °, and the first infrared receiving/transmission module 21, any two Liang Jiaochu that are separately positioned on touch-screen 1 in the second infrared receiving/transmission module 22 and the 3rd infrared receiving/transmission module 23 have guaranteed the first infrared receiving/transmission module 21 on the one hand, the Infrared of the second infrared receiving/ transmission module 22 and 23 emissions of the 3rd infrared receiving/transmission module can cover described touch-screen 1; The intersection point that has guaranteed on the other hand the Infrared of the first infrared receiving/transmission module 21, the second infrared receiving/ transmission module 22 and 23 emissions of the 3rd infrared receiving/transmission module only has one.
Present embodiment is provided with three infrared receiving/transmission modules and two Liang Jiaochu that are arranged on touch-screen 1 is wherein arranged, two kinds of situations are arranged, wherein a kind of situation is that wherein two infrared receiving/transmission modules are arranged on adjacent two jiaos of places of touch-screen 1, and another kind of situation is that wherein two infrared receiving/transmission modules are arranged on two relative angle places of touch-screen 1.Wherein the first situation is identical with above-mentioned embodiment, only can obtain an intersection point owing to do circular arc with adjacent two jiaos of two infrared receiving/transmission modules locating that touch-screen 1 is set apart from the distance of touch point, so two infrared receiving/transmission modules can only be set, not repeat them here.Can obtain two intersection points owing to do circular arc with two infrared receiving/transmission modules at the two relative angle places that are arranged on touch-screen 1 apart from the distance of touch point respectively, also can't determine the accurate coordinate of touch point, so when the second situation, also need to do circular arc apart from the distance of touch point with the 3rd infrared receiving/transmission module and from above-mentioned two intersection points, determine one, namely realize the accurately purpose of touch point, location.
Infrared touching device disclosed in this invention, launch Infrared by the first infrared receiving/transmission module 21, the second infrared receiving/transmission module 22 and the 3rd infrared receiving/transmission module 23 to touch-screen 1, and because the spread angle of the first infrared receiving/transmission module 21, the second infrared receiving/transmission module 22 and the 3rd infrared receiving/transmission module 23 is all more than 90 °, two Liang Jiaochu that are separately positioned on touch-screen 1 are wherein arranged, guaranteed that on the one hand the Infrared of the first infrared receiving/transmission module 21, the second infrared receiving/ transmission module 22 and 23 emissions of the 3rd infrared receiving/transmission module can cover described touch-screen 1; The intersection point that has guaranteed on the other hand the Infrared of the first infrared receiving/transmission module 21, the second infrared receiving/ transmission module 22 and 23 emissions of the 3rd infrared receiving/transmission module only has one.When touch-screen 1 is touched, the touch point reflexes to the first infrared receiving/transmission module 21 with the Infrared of the first infrared receiving/transmission module 21 emissions, the Infrared of the second infrared receiving/transmission module 22 emission is reflexed to the second infrared receiving/transmission module 22 and the Infrared of the 3rd infrared receiving/transmission module 23 emissions is reflexed to the 3rd infrared receiving/transmission module 23, while the first infrared receiving/transmission module 21, the second infrared receiving/transmission module 22 becomes corresponding signal to be sent to positioning unit the Infrared data-switching that receives with the 3rd infrared receiving/transmission module 23, positioning unit calculates the coordinate of touch point according to presetting rule, has namely realized the location to the touch point.Correlation mode relatively of the prior art, the present invention need not to arrange many group infrared transmitting tubes and many group infrared receiving tubes, has the reduction cost, reduces the advantage of power consumption.
Certainly the invention is not restricted to only arrange three infrared receiving/transmission modules, at the spread angle of the first infrared receiving/transmission module 21, the second infrared receiving/transmission module 22 and the 3rd infrared receiving/transmission module 23 all more than 90 °, and in the first infrared receiving/transmission module 21, the second infrared receiving/transmission module 22 and the 3rd infrared receiving/transmission module 23 any two when being separately positioned on two jiaos of touch-screen 1 places can set up the infrared receiving/transmission module in other any positions.
In specific embodiment, infrared touching device among the present invention also comprises the first judging unit, whether the touch point coordinate that this first judging unit is used for calculating according to positioning unit changes in the Preset Time scope, judges that touch operation is the direction of point touching operation or slip touch operation and slip.When touch point coordinate change in the Preset Time scope that positioning unit calculates, then this touch operation of the first judgment unit judges is the point touching operation; When touch point coordinate that positioning unit calculates in the Preset Time scope change has occured, then this touch operation of the first judgment unit judges is the slip touch operation, and according to the variation of point coordinate, judge the direction of sliding, as left, to the right, slide up or down.For example, when touch point coordinate that positioning unit calculates in 3S clock (this time can according to the design of actual functional capability needs) change has occured, then this touch operation of the first judgment unit judges is the slip touch operation; When touch point coordinate that positioning unit calculates in the 3S clock change has not occured, then this touch operation of the first judgment unit judges is the point touching operation.
In specific embodiment, infrared touching device of the present invention also comprises timing unit and the second judging unit, and timing unit is used for the touch time that touch operation clicked in record, the second judging unit be used for according to the touch time judge click touch operation be long by or short by.When touch time of the point touching operation of timing unit record less than preset value, then this point touching operation of the second judgment unit judges be short by; When touch time of the point touching operation of timing unit record greater than preset value and in the Preset Time scope, then this point touching operation of the second judgment unit judges be long by.For example, when touch time of the point touching operation of timing unit record less than 2S, then this point touching operation of the second judgment unit judges be short by; When touch time of the point touching operation of timing unit record greater than 2S, then this point touching operation of the second judgment unit judges be long by.
One or more can being arranged in the processor in positioning unit in the present embodiment, the first judging unit, timing unit and the second judging unit also can be independent of the processor setting.
The invention also discloses a kind of recognition methods of infrared touching device, with reference to shown in Figure 4, Fig. 4 is the schematic flow sheet of recognition methods first embodiment of infrared touching device of the present invention.The recognition methods of this infrared touching device comprises the steps:
S01 starts the scanning of the first infrared receiving/transmission module and the second infrared receiving/transmission module, and wherein the spread angle of the first infrared receiving/transmission module and the second infrared receiving/transmission module is all more than 90 ° and be separately positioned on two adjacent angular places of touch-screen.
The spread angle of the first infrared receiving/transmission module and the second infrared receiving/transmission module all more than 90 ° and be separately positioned on two adjacent angular places of touch-screen, has guaranteed that on the one hand the Infrared of the first infrared receiving/transmission module and the second infrared receiving/transmission module emission can cover described touch-screen; The intersection point that has guaranteed on the other hand the Infrared of the first infrared receiving/transmission module and the second infrared receiving/transmission module emission only has one.
S02 judges whether to occur touch event, if execution in step S03 then, if not end operation then.
If the receiving end of the first infrared receiving/transmission module and the second infrared receiving/transmission module receives the Infrared through emission, then showing has touch event to occur.
S03 calculates the coordinate of touch point according to presetting rule and according to the Infrared data of the first infrared receiving/transmission module and the reception of the second infrared receiving/transmission module.
The recognition methods of infrared touching device disclosed in this invention, by starting the first infrared receiving/transmission module and the second infrared receiving/transmission module scans touch-screen, namely to touch-screen emission Infrared, and because the spread angle of the first infrared receiving/transmission module and the second infrared receiving/transmission module is all more than 90 °, and be separately positioned on two adjacent angular places of touch-screen, guaranteed that on the one hand the Infrared of the first infrared receiving/transmission module and the second infrared receiving/transmission module emission can cover described touch-screen; The intersection point that has guaranteed on the other hand the Infrared of the first infrared receiving/transmission module and the second infrared receiving/transmission module emission only has one.When touch event occurs when, be that touch-screen is when being touched, the touch point reflexes to the Infrared of the first infrared receiving/transmission module emission the first infrared receiving/transmission module and the Infrared of the second infrared receiving/transmission module emission is reflexed to the second infrared receiving/transmission module, according to presetting rule and according to the first infrared receiving/transmission module and the second infrared receiving/transmission module the Infrared data that receive are calculated the coordinate of touch point, namely realized the location to the touch point.Correlation mode relatively of the prior art, the present invention need not to arrange many group infrared transmitting tubes and many group infrared receiving tubes, has the reduction cost, reduces the advantage of power consumption.
With reference to Fig. 5, Fig. 5 is the schematic flow sheet of recognition methods second embodiment of infrared touching device of the present invention.In this embodiment, the recognition methods of infrared touching device of the present invention comprises the steps:
S01 starts the scanning of the first infrared receiving/transmission module and the second infrared receiving/transmission module, and wherein the spread angle of the first infrared receiving/transmission module and the second infrared receiving/transmission module is all more than 90 ° and be separately positioned on two adjacent angular places of touch-screen.
The spread angle of the first infrared receiving/transmission module and the second infrared receiving/transmission module all more than 90 ° and be separately positioned on two adjacent angular places of touch-screen, has guaranteed that on the one hand the Infrared of the first infrared receiving/transmission module and the second infrared receiving/transmission module emission can cover described touch-screen; The intersection point that has guaranteed on the other hand the Infrared of the first infrared receiving/transmission module and the second infrared receiving/transmission module emission only has one.
S02 judges whether to occur touch event, if execution in step S03 then, if not end operation then.
If the receiving end of the first infrared receiving/transmission module and the second infrared receiving/transmission module receives the Infrared through emission, then showing has touch event to occur.
S03 is according to presetting rule and calculate the coordinate of touch-screen touched point according to the Infrared data that the first infrared receiving/transmission module and the second infrared receiving/transmission module receive.
S04 judges whether the coordinate of touch point changes in the Preset Time scope, if execution in step S05 then, if not execution in step S06 then.
S05 judges that touch operation is the slip touch operation, and according to the variation of touch point coordinate, judges the direction of sliding.
S06 judges that touch operation is the point touching operation.
With reference to Fig. 6, Fig. 6 is the schematic flow sheet of recognition methods the 3rd embodiment of infrared touching device of the present invention.In this embodiment, the recognition methods of infrared touching device of the present invention comprises the steps:
S01 starts the scanning of the first infrared receiving/transmission module and the second infrared receiving/transmission module, and wherein the spread angle of the first infrared receiving/transmission module and the second infrared receiving/transmission module is all more than 90 ° and be separately positioned on two adjacent angular places of touch-screen.
The spread angle of the first infrared receiving/transmission module and the second infrared receiving/transmission module all more than 90 ° and be separately positioned on two adjacent angular places of touch-screen, has guaranteed that on the one hand the Infrared of the first infrared receiving/transmission module and the second infrared receiving/transmission module emission can cover described touch-screen; The intersection point that has guaranteed on the other hand the Infrared of the first infrared receiving/transmission module and the second infrared receiving/transmission module emission only has one.
S02 judges whether to occur touch event, if execution in step S03 then, if not end operation then.
If the receiving end of the first infrared receiving/transmission module and the second infrared receiving/transmission module receives the Infrared through emission, then showing has touch event to occur.
S03 calculates the coordinate of touch point according to presetting rule and according to the Infrared data of the first infrared receiving/transmission module and the reception of the second infrared receiving/transmission module.
S04 judges whether the coordinate of touch point changes in the Preset Time scope, if execution in step S05 then, if not execution in step S06 then.
S05 judges that touch operation is the slip touch operation, and according to the variation of touch point coordinate, judges the direction of sliding.
S06 judges that touch operation is the point touching operation.
S07, the record sustained touch time.
S08, according to the touch time, judge to click touch operation and be long by or short by.
The invention also discloses the recognition methods of another kind of infrared touching device, with reference to shown in Figure 7, Fig. 7 is the schematic flow sheet of recognition methods the 4th embodiment of infrared touching device of the present invention.The recognition methods of this infrared touching device comprises the steps:
S11, start the first infrared receiving/transmission module, the second infrared receiving/transmission module and the scanning of the 3rd infrared receiving/transmission module, the spread angle of wherein said the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module is more than 90 °, wherein any two Liang Jiaochu that are separately positioned on touch-screen.
The spread angle of the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module has guaranteed on the one hand that all more than 90 ° and any two Liang Jiaochu that are separately positioned on touch-screen in the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module Infrared of the first infrared receiving/transmission module, the second infrared receiving/transmission module and the emission of the 3rd infrared receiving/transmission module can cover described touch-screen; The intersection point that has guaranteed on the other hand the Infrared of the first infrared receiving/transmission module, the second infrared receiving/transmission module and the emission of the 3rd infrared receiving/transmission module only has one.
S12 judges whether to occur touch event, if execution in step S13 then, if not end operation then.
If the receiving end of the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module receives the Infrared through emission, then showing has touch event to occur.
S13 calculates the coordinate of touch point according to presetting rule and according to the Infrared data that the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module receive.
The recognition methods of infrared touching device disclosed in this invention, by starting the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module scan touch-screen, namely to touch-screen emission Infrared, and because the first infrared receiving/transmission module, the spread angle of the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module is all more than 90 °, two Liang Jiaochu that are separately positioned on touch-screen are wherein arranged, guaranteed on the one hand the first infrared receiving/transmission module, the Infrared of the second infrared receiving/transmission module and the emission of the 3rd infrared receiving/transmission module can cover described touch-screen; The intersection point that has guaranteed on the other hand the Infrared of the first infrared receiving/transmission module, the second infrared receiving/transmission module and the emission of the 3rd infrared receiving/transmission module only has one.When touch event occurs when, be that touch-screen is when being touched, the touch point reflexes to the Infrared of the first infrared receiving/transmission module emission the first infrared receiving/transmission module, the Infrared of the second infrared receiving/transmission module emission is reflexed to the second infrared receiving/transmission module and the Infrared of the 3rd infrared receiving/transmission module emission is reflexed to the 3rd infrared receiving/transmission module, according to presetting rule and according to the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module the Infrared data that receive are calculated the coordinate of touch point, namely realized the location to the touch point.Correlation mode relatively of the prior art, the present invention need not to arrange many group infrared transmitting tubes and many group infrared receiving tubes, has the reduction cost, reduces the advantage of power consumption.
With reference to Fig. 8, Fig. 8 is the schematic flow sheet of recognition methods the 5th embodiment of infrared touching device of the present invention.In this embodiment, the recognition methods of infrared touching device of the present invention comprises the steps:
S11, start the first infrared receiving/transmission module, the second infrared receiving/transmission module and the scanning of the 3rd infrared receiving/transmission module, the spread angle of wherein said the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module is more than 90 °, wherein any two Liang Jiaochu that are separately positioned on touch-screen.
The spread angle of the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module has guaranteed on the one hand that all more than 90 ° and any two Liang Jiaochu that are separately positioned on touch-screen in the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module Infrared of the first infrared receiving/transmission module, the second infrared receiving/transmission module and the emission of the 3rd infrared receiving/transmission module can cover described touch-screen; The intersection point that has guaranteed on the other hand the Infrared of the first infrared receiving/transmission module, the second infrared receiving/transmission module and the emission of the 3rd infrared receiving/transmission module only has one.Any two two relative angle places that are separately positioned on touch-screen in the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module preferably.
S12 judges whether to occur touch event, if execution in step S13 then, if not end operation then.
If the receiving end of the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module receives the Infrared through emission, then showing has touch event to occur.
S13 calculates the coordinate of touch point according to presetting rule and according to the Infrared data that the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module receive.
S14 judges whether the coordinate of touch point changes in the Preset Time scope, if execution in step S15 then, if not execution in step S16 then.
S15 judges that touch operation is the slip touch operation, and according to the variation of touch point coordinate, judges the direction of sliding.
S16 judges that touch operation is the point touching operation.
With reference to Fig. 9, Fig. 9 is the schematic flow sheet of recognition methods the 6th embodiment of infrared touching device of the present invention.In this embodiment, the recognition methods of infrared touching device of the present invention comprises the steps:
S11, start the first infrared receiving/transmission module, the second infrared receiving/transmission module and the scanning of the 3rd infrared receiving/transmission module, the spread angle of wherein said the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module is more than 90 °, wherein any two Liang Jiaochu that are separately positioned on touch-screen.
The spread angle of the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module has guaranteed on the one hand that all more than 90 ° and any two Liang Jiaochu that are separately positioned on touch-screen in the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module Infrared of the first infrared receiving/transmission module, the second infrared receiving/transmission module and the emission of the 3rd infrared receiving/transmission module can cover described touch-screen; The intersection point that has guaranteed on the other hand the Infrared of the first infrared receiving/transmission module, the second infrared receiving/transmission module and the emission of the 3rd infrared receiving/transmission module only has one.
S12 judges whether to occur touch event, if execution in step S13 then, if not end operation then.
If the receiving end of the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module receives the Infrared through emission, then showing has touch event to occur.
S13 calculates the coordinate of touch point according to presetting rule and according to the Infrared data that the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module receive.
S14 judges whether the coordinate of touch point changes in the Preset Time scope, if execution in step S15 then, if not execution in step S16 then.
S15 judges that touch operation is the slip touch operation, and according to the variation of touch point coordinate, judges the direction of sliding.
S16 judges that touch operation is the point touching operation.
S17, the record sustained touch time.
S18, according to the touch time, judge to click touch operation and be long by or short by.
The above only is the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes instructions of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (13)
1. an infrared touching device comprises touch-screen, it is characterized in that, also comprises:
Spread angle is separately positioned on two adjacent angular places of described touch-screen at the first infrared receiving/transmission module more than 90 ° and the second infrared receiving/transmission module, is used for emission Infrared and reception through the Infrared of reflection;
And positioning unit, be used for calculating the coordinate of touch point according to presetting rule and according to the Infrared data of described the first infrared receiving/transmission module and the reception of the second infrared receiving/transmission module.
2. infrared touching device according to claim 1, it is characterized in that, also comprise the first judging unit, be used for whether changing in the Preset Time scope according to the coordinate of described touch point, judge that touch operation is the direction of point touching operation or slip touch operation and slip.
3. infrared touching device according to claim 2 is characterized in that, also comprises:
Timing unit is used for recording the touch time that described point touching operates;
The second judging unit, be used for according to the described touch time judge described point touching operation be long by or short by.
4. an infrared touching device comprises touch-screen, it is characterized in that, also comprises:
Spread angle is at the first infrared receiving/transmission module more than 90 °, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module, any two Liang Jiaochu that are separately positioned on described touch-screen in described the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module are used for emission Infrared and reception through the Infrared of reflection;
And positioning unit, be used for calculating the coordinate of touch point according to presetting rule and according to the Infrared data that described the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module receive.
5. infrared touching device according to claim 4 is characterized in that, any two the two relative angle places that are separately positioned on described touch-screen in described the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module.
6. according to claim 4 or 5 described infrared touching devices, it is characterized in that, also comprise the first judging unit, be used for whether changing in the Preset Time scope according to the coordinate of described touch point, judge that touch operation is the direction of point touching operation or slip touch operation and slip.
7. infrared touching device according to claim 6 is characterized in that, also comprises:
Timing unit is used for recording the touch time that described point touching operates;
The second judging unit, be used for according to the described touch time judge described point touching operation be long by or short by.
8. the recognition methods of an infrared touching device is characterized in that, may further comprise the steps:
Start the scanning of the first infrared receiving/transmission module and the second infrared receiving/transmission module, the spread angle of wherein said the first infrared receiving/transmission module and the second infrared receiving/transmission module is all more than 90 ° and be separately positioned on two adjacent angular places of touch-screen;
Judge whether to occur touch event, if then calculate the coordinate of touch point according to presetting rule and according to the Infrared data of the first infrared receiving/transmission module and the reception of the second infrared receiving/transmission module.
9. recognition methods according to claim 8 is characterized in that, and is further comprising the steps of:
Whether the coordinate of judging described touch point changes in the Preset Time scope, if not, judges that then touch operation is the point touching operation; If judge that then touch operation is the direction of slip touch operation and slip.
10. recognition methods according to claim 9 is characterized in that, is judging that touch operation is further comprising the steps of after being the point touching operation:
The record sustained touch time;
According to the described touch time, judge the operation of described point touching be long by or short by.
11. the recognition methods of an infrared touching device is characterized in that, may further comprise the steps:
Start the first infrared receiving/transmission module, the second infrared receiving/transmission module and the scanning of the 3rd infrared receiving/transmission module, the spread angle of wherein said the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module is more than 90 °, wherein any two Liang Jiaochu that are separately positioned on touch-screen;
Judge whether to occur touch event, if then calculate the coordinate of touch point according to presetting rule and according to the Infrared data that the first infrared receiving/transmission module, the second infrared receiving/transmission module and the 3rd infrared receiving/transmission module receive.
12. recognition methods according to claim 11 is characterized in that, and is further comprising the steps of:
Whether the coordinate of judging described touch point changes in the Preset Time scope, if not, judges that then touch operation is the point touching operation; If judge that then touch operation is the direction of slip touch operation and slip.
13. recognition methods according to claim 12 is characterized in that, is judging that touch operation is further comprising the steps of after being the point touching operation:
The record sustained touch time;
According to the described touch time, judge the operation of described point touching be long by or short by.
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| CN2012104296320A CN102915161A (en) | 2012-10-31 | 2012-10-31 | Infrared touch device and identification method thereof |
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| CN2012104296320A CN102915161A (en) | 2012-10-31 | 2012-10-31 | Infrared touch device and identification method thereof |
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