CN102214046A - Touch positioning method and system - Google Patents
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Abstract
The invention discloses a touch positioning method and system. The touch positioning method comprises the steps of: acquiring first initial position information and second initial position information of an actual touched object by using the infrared touch positioning system, and acquiring auxiliary initial position information of the actual touched object by adopting the auxiliary touch positioning system; acquiring position information of touched objects according to the first initial position information and the auxiliary initial position information, wherein the touched objects comprise the actual touched object and a virtual touched object; and acquiring position information of the actual touched object from the position information of the touched objects according to the second initial position information. According to the invention, the positions of the touched objects can be precisely located when more than two touched objects exist.
Description
Technical field
The present invention relates to field of photoelectric technology, relate in particular to a kind of touch localization method and system.
Background technology
Along with popularizing of computer technology, in early 1990s a kind of new human-computer interaction technology-touch screen technology has appearred.Adopt this technology, the user is as long as touch figure on the computer display or literal lightly with regard to energy operational computations machine with hand or the pen object of etc.ing, thereby broken away from the constraint of keyboard and mouse, is very easy to the user.Touch-screen commonly used has: infrared touch panel, band camera touch-screen, surface acoustic wave type touch-screen and projected capacitive touch screen.
Wherein, infrared touch panel is determined the horizontal ordinate and the ordinate of touch objects respectively according to the emission receiving status information of two groups of infrared tubes, thereby determines the positional information of touch objects.When having a touch objects, infrared touch panel can accurately be located the touch objects position.But when having two above touch objects, infrared touch panel " terrible point " can occur when determining the positional information of touch objects, and at this moment, infrared touch panel can not accurately be located the touch objects position." terrible point " refers to not be in esse touch objects, i.e. virtual touch thing.
Summary of the invention
The invention provides a kind of touch localization method and system, when having two above touch objects, accurately locate the touch objects position in order to realization.
The invention provides a kind of touch localization method, described method is applied to comprise the touching and positioning system of an infrared touch positioning system and an auxiliary touching and positioning system, described auxiliary touching and positioning system is the optical touch positioning system that comprises an imaging device, comprises the projected capacitive touching and positioning system of one deck touch sensitive layer and comprise one of surface acoustic wave type touching and positioning system of a pair of acoustic wave transducer and a pair of reflective array that described method comprises:
Adopt described infrared touch positioning system to obtain the first preliminary positional information and the second preliminary positional information of actual touch thing, adopt described auxiliary touching and positioning system to obtain the auxiliary preliminary positional information of described actual touch thing;
According to the described first preliminary positional information and described auxiliary preliminary positional information, obtain the positional information of touch objects, described touch objects comprises described actual touch thing and virtual touch thing;
According to the described second preliminary positional information, from the positional information of described touch objects, obtain the positional information of described actual touch thing.
The present invention also provides a kind of touching and positioning system, comprising:
The infrared touch positioning system is used to obtain the first preliminary positional information and the second preliminary positional information of actual touch thing;
Assist touching and positioning system, be used to obtain the auxiliary preliminary positional information of described actual touch thing;
The touch objects position information acquisition module is used for obtaining the positional information of touch objects according to the described first preliminary positional information and described auxiliary preliminary positional information, and described touch objects comprises described actual touch thing and virtual touch thing;
Actual touch object location information acquisition module is used for obtaining the positional information of described actual touch thing according to the described second preliminary positional information from the positional information of described touch objects;
Wherein, described auxiliary touching and positioning system is the optical touch positioning system that comprises an imaging device, comprises the projected capacitive touching and positioning system of one deck touch sensitive layer and comprise one of surface acoustic wave type touching and positioning system of a pair of acoustic wave transducer and a pair of reflective array.
In the present invention, processing unit adopts the infrared touch positioning system to obtain the first preliminary positional information and the second preliminary positional information of actual touch thing, adopt auxiliary touching and positioning system to obtain the auxiliary preliminary positional information of actual touch thing, then according to the first preliminary positional information of actual touch thing and auxiliary preliminary positional information, obtain the positional information of touch objects, the last second preliminary positional information according to the actual touch thing, from the positional information of touch objects, obtain the positional information of actual touch thing, thereby avoided when two the above touch objects in location, occurring " terrible point ", accurately locate the touch objects position, from the positional information of touch objects, obtain the positional information of actual touch thing, thereby avoided when two the above touch objects in location, " terrible point " occurring, accurately located the touch objects position.
Description of drawings
Fig. 1 is the schematic flow sheet of touch localization method first embodiment of the present invention;
Fig. 2 is the schematic flow sheet of touch localization method second embodiment of the present invention;
Fig. 3 is the structural representation of a kind of touching and positioning system among touch localization method second embodiment of the present invention;
Fig. 4 is the schematic flow sheet of touch localization method the 3rd embodiment of the present invention;
Fig. 5 is the schematic flow sheet of touch localization method the 4th embodiment of the present invention;
Fig. 6 is the structural representation of a kind of touching and positioning system among touch localization method the 5th embodiment of the present invention;
Fig. 7 is the structural representation of another kind of touching and positioning system among touch localization method the 5th embodiment of the present invention;
Fig. 8 is the structural representation of touching and positioning system first embodiment of the present invention;
Fig. 9 is the structural representation of touching and positioning system second embodiment of the present invention;
Figure 10 is the structural representation of touching and positioning system the 3rd embodiment of the present invention;
Figure 11 is the structural representation of touching and positioning system the 4th embodiment of the present invention;
Figure 12 is the structural representation of touching and positioning system the 5th embodiment of the present invention.
Embodiment
The invention will be further described below in conjunction with specification drawings and specific embodiments.
Touch localization method first embodiment
Present embodiment is applied to comprise the touching and positioning system of an infrared touch positioning system and an auxiliary touching and positioning system, one of surface acoustic wave type touching and positioning system that this auxiliary touching and positioning system is specifically as follows the optical touch positioning system that comprises an imaging device, the projected capacitive touching and positioning system that comprises one deck touch sensitive layer and comprises a pair of acoustic wave transducer and a pair of reflective array.
As shown in Figure 1, the schematic flow sheet for touch localization method first embodiment of the present invention can comprise the steps:
Particularly, processing unit adopts the infrared touch positioning system to obtain the first preliminary positional information and the second preliminary positional information of actual touch thing, adopts auxiliary touching and positioning system to obtain the auxiliary preliminary positional information of actual touch thing.
Step 12, processing unit obtain the positional information of touch objects;
Particularly, processing unit obtains the positional information of touch objects according to the first preliminary positional information and the auxiliary preliminary positional information of actual touch thing, and wherein, touch objects comprises actual touch thing and virtual touch thing.
Particularly, processing unit obtains the positional information of actual touch thing according to the second preliminary positional information of actual touch thing from the positional information of touch objects.
In the present embodiment, processing unit adopts the infrared touch positioning system to obtain the first preliminary positional information and the second preliminary positional information of actual touch thing, adopt auxiliary touching and positioning system to obtain the auxiliary preliminary positional information of actual touch thing, then according to the first preliminary positional information of actual touch thing and auxiliary preliminary positional information, obtain the positional information of touch objects, the last second preliminary positional information according to the actual touch thing, from the positional information of touch objects, obtain the positional information of actual touch thing, thereby avoided when two the above touch objects in location, " terrible point " occurring, accurately located the touch objects position.
Touch localization method second embodiment
Be with the difference of a last embodiment, in the present embodiment, auxiliary touching and positioning system is specifically as follows the optical touch positioning system that comprises an imaging device, the first preliminary positional information is specifically as follows horizontal ordinate information, the second preliminary positional information is specifically as follows ordinate information, auxiliary touching position information is specifically as follows first angle, first angle is the line of photocentre of actual touch thing position and imaging device and the angle of coordinate axis, this coordinate axis can be X-axis or Y-axis, and the positional information of touch objects is specifically as follows the two-dimensional coordinate information of touch objects.
As shown in Figure 2, be the schematic flow sheet of touch localization method second embodiment of the present invention, be that with the difference of schematic flow sheet shown in Figure 1 step 12-step 13 is specifically as follows following steps:
Particularly, processing unit calculates the two-dimensional coordinate information of touch objects according to first angle and the horizontal ordinate information of actual touch thing;
Particularly, to select ordinate from the two-dimensional coordinate information of touch objects be that the two-dimensional coordinate information of ordinate information of actual touch thing is as the two-dimensional coordinate information of actual touch thing to processing unit.
Be the course of work that example is introduced present embodiment with two actual touch things below: as shown in Figure 3, be the structural representation of a kind of touching and positioning system among touch localization method second embodiment of the present invention, this touching and positioning system can comprise touch panel, infrared touch positioning system, optical touch positioning system and processing unit 33.Touch panel can comprise the four edges edge: first edge 201, second edge 202, the 3rd edge 203 and the 4th edge 204.The infrared touch positioning system comprises two groups of infrared tubes, every group of infrared tube can comprise infrared emission component 211 and infrared receiver component 212, infrared emission component 211 is installed in first edge 201 and second edge 202, and infrared receiver component 212 is installed in the 3rd edge 203 and the 4th edge 204.The optical touch positioning system can comprise imaging device 31, light source 32 and retroreflecting bar 34, imaging device 31 is installed in the angle of cut place at first edge 201 and second edge 202, light source 32 is installed near the imaging device 31, retroreflecting bar 34 is installed in second edge 202, the 3rd edge 203 and the 4th edge 204, and retroreflecting bar 34 reflexes to imaging device 31 with the light of light source 32 emissions.Processing unit 33 is connected with imaging device 31 with two groups of infrared tubes respectively.
In the present embodiment, the infrared emission component 211 that is positioned at first edge 201 forms the emission RX path parallel with Y-axis with the infrared receiver component 212 that is positioned at the 3rd edge 203, the infrared emission component 211 that is positioned at second edge 202 forms the emission RX path parallel with X-axis with the infrared receiver component 212 that is positioned at the 4th edge 204, P1 and P2 are two actual touch things, the two-dimensional coordinate information of actual touch thing P 1 is (x1, y1), the two-dimensional coordinate information of actual touch thing P2 be (x2, y2).
In step 11, processing unit 33 is according to the emission receiving status information of infrared emission component 211 and infrared receiver component 212, obtain the horizontal ordinate information x1 of actual touch thing P1 and P2 and ordinate information y1 and the y2 of x2 and actual touch thing P1 and P2, the view data that processing unit 33 is gathered according to imaging device 31, obtain first angle, first angle comprises the line of photocentre of the angle α 1 of the line of photocentre of actual touch thing P1 position and imaging device 31 and X-axis and actual touch thing P2 position and imaging device 31 and the angle α 2 of X-axis.
In step 21, processing unit 33 calculates the ordinate information y1 of actual touch thing P1 according to the horizontal ordinate information x1 of the first angle α 1 and actual touch thing P1, thereby obtain the two-dimensional coordinate information (x1 of actual touch thing P1, y1), calculate the ordinate information y3 of virtual touch thing P3 according to the horizontal ordinate information x1 of the first angle α 2 and actual touch thing P 1, thereby obtain the two-dimensional coordinate information (x1 of virtual touch thing P3, y3), calculate the ordinate information y2 of actual touch thing P2 according to the horizontal ordinate information x2 of the first angle α 2 and actual touch thing P2, thereby obtain the two-dimensional coordinate information (x2 of actual touch thing P2, y2), calculate the ordinate information y4 of virtual touch thing P4 according to the horizontal ordinate information x2 of the first angle α 1 and actual touch thing P2, thereby obtain virtual touch thing P4 two-dimensional coordinate information (x2, y4).
In step 22, processing unit 33 is from the positional information of P1, P2, P3 and four touch objects of P4, selecting ordinate is the two-dimensional coordinate information (x1 of the ordinate information y1 of actual touch thing P1, y1), and ordinate is that (x2 is y2) as the two-dimensional coordinate information of actual touch thing for the two-dimensional coordinate information of the ordinate information y2 of actual touch thing P2.
In the present embodiment, processing unit adopts the infrared touch positioning system to obtain the horizontal ordinate information and the ordinate information of actual touch thing, adopt the optical touch positioning system to obtain first angle of actual touch thing, processing unit is according to first angle and the horizontal ordinate information of actual touch thing then, obtain the two-dimensional coordinate information of touch objects, last ordinate information according to the actual touch thing, from the two-dimensional coordinate information of touch objects, obtain the two-dimensional coordinate information of actual touch thing, thereby can avoid when two the above touch objects in location, " terrible point " occurring, accurately locate actual touch thing position.
Touch localization method the 3rd embodiment
As shown in Figure 4, be the schematic flow sheet of touch localization method the 3rd embodiment of the present invention, be that with the difference of schematic flow sheet shown in Figure 1 in the present embodiment, step 12 can comprise the steps:
Particularly, processing unit obtains the auxiliary doubtful positional information of actual touch thing according to the auxiliary preliminary positional information of actual touch thing;
Particularly, processing unit obtains the positional information of touch objects according to the first preliminary positional information of actual touch thing from the auxiliary doubtful positional information of actual touch thing.
In the present embodiment, processing unit adopts the infrared touch positioning system to obtain the first preliminary positional information and the second preliminary positional information of actual touch thing, adopt auxiliary touching and positioning system to obtain the auxiliary preliminary positional information of actual touch thing, then according to the auxiliary preliminary positional information of actual touch thing, obtain the auxiliary doubtful positional information of actual touch thing, again according to the first preliminary positional information of actual touch thing, from the auxiliary doubtful positional information of actual touch thing, obtain the positional information of touch objects, the last second preliminary positional information according to the actual touch thing, from the positional information of touch objects, obtain the positional information of actual touch thing, thereby avoided when two the above touch objects in location, " terrible point " occurring, accurately located the touch objects position.
Touch localization method the 4th embodiment
Be with the difference of a last embodiment, in the present embodiment, auxiliary touching and positioning system is specifically as follows the optical touch positioning system that comprises an imaging device, the first preliminary positional information is specifically as follows horizontal ordinate information, the second preliminary positional information is specifically as follows ordinate information, auxiliary touching position information is specifically as follows first angle, first angle is the line of photocentre of actual touch thing position and imaging device and the angle of coordinate axis, this coordinate axis can be X-axis or Y-axis, auxiliary doubtful positional information is specifically as follows auxiliary doubtful two-dimensional coordinate information, and the positional information of touch objects is specifically as follows the two-dimensional coordinate information of touch objects.
As shown in Figure 5, be the schematic flow sheet of touch localization method the 4th embodiment of the present invention, be that with the difference of schematic flow sheet shown in Figure 4 step 41-step 13 is specifically as follows following steps:
Particularly, has a storer in the processing unit, store in this storer from the photocentre of imaging device to touching that detection zone extends and being all two-dimensional coordinate information on each bar straight lines of different angles with coordinate axis, processing unit is according to first angle of actual touch thing, and inquiry obtains all two-dimensional coordinate information on the line place straight line of photocentre of actual touch thing position and imaging device as the auxiliary doubtful two-dimensional coordinate information of actual touch thing from storer;
Particularly, to select horizontal ordinate from the auxiliary doubtful two-dimensional coordinate information of actual touch thing be that the two-dimensional coordinate information of horizontal ordinate information of actual touch thing is as the two-dimensional coordinate information of touch objects to processing unit;
Particularly, to select ordinate from the two-dimensional coordinate information of touch objects be that the two-dimensional coordinate information of ordinate information of actual touch thing is as the two-dimensional coordinate information of actual touch thing to processing unit.
Be the course of work that example is introduced present embodiment with two actual touch things below:
Again referring to structural representation shown in Figure 3, in step 11, processing unit 33 is according to the emission receiving status information of infrared emission component 211 and infrared receiver component 212, obtain horizontal ordinate information x1 and the x2 of actual touch thing P1 and P2, and ordinate information y1 and the y2 of actual touch thing P1 and P2, the view data that processing unit 33 is gathered according to imaging device 31, obtain first angle, first angle comprises the line of photocentre of actual touch thing P1 position and imaging device 31 and the angle α 1 of X-axis, and the angle α 2 of the line of the photocentre of actual touch thing P2 position and imaging device 31 and X-axis.
In step 51, processing unit 33 is according to the first angle α 1, inquiry obtains all the two-dimensional coordinate information on the line place straight line of photocentre of actual touch thing P1 position and imaging device 31 from storer, according to the first angle α 2, inquiry obtains all the two-dimensional coordinate information on the line place straight line of photocentre of actual touch thing P2 position and imaging device 31 from storer, with the auxiliary doubtful two-dimensional coordinate information of all the two-dimensional coordinate information on these two straight lines as the actual touch thing.
In step 52, processing unit 33 is selected horizontal ordinate from the auxiliary doubtful two-dimensional coordinate information of actual touch thing P1 and P2 be the two-dimensional coordinate information of the two-dimensional coordinate information of the horizontal ordinate information x1 of actual touch thing P1 and P2 and x2 as touch objects, be that horizontal ordinate is the two-dimensional coordinate information (x1 of actual touch thing P1 of the horizontal ordinate information x1 of actual touch thing P1 in all the two-dimensional coordinate information on the line place straight line of photocentre of actual touch thing P1 position and imaging device 31, y1), horizontal ordinate is the two-dimensional coordinate information (x2 of virtual touch thing P4 of the horizontal ordinate information x2 of actual touch thing P2 in all two-dimensional coordinate information on the line place straight line of the photocentre of actual touch thing P1 position and imaging device 31, y4), horizontal ordinate is the two-dimensional coordinate information (x1 of virtual touch thing P3 of the horizontal ordinate information x1 of actual touch thing P1 in all two-dimensional coordinate information on the line place straight line of the photocentre of actual touch thing P2 position and imaging device 31, y3), and in all the two-dimensional coordinate information on the line place straight line of the photocentre of actual touch thing P2 position and imaging device 31 horizontal ordinate be actual touch thing P2 horizontal ordinate information x2 actual touch thing P2 two-dimensional coordinate information (x2, y2).
In step 53, processing unit 33 is from the positional information of P1, P2, P3 and four touch objects of P4, selecting ordinate is the two-dimensional coordinate information (x1 of the ordinate information y1 of actual touch thing P1, y1), and ordinate is that (x2 is y2) as the two-dimensional coordinate information of actual touch thing for the two-dimensional coordinate information of the ordinate information y2 of actual touch thing P2.
In the present embodiment, processing unit adopts the infrared touch positioning system to obtain the horizontal ordinate information and the ordinate information of actual touch thing, adopt the optical touch positioning system to obtain first angle of actual touch thing, processing unit obtains the auxiliary doubtful two-dimensional coordinate information of actual touch thing according to first angle of actual touch thing then, selecting horizontal ordinate from the auxiliary doubtful two-dimensional coordinate information of actual touch thing is that the two-dimensional coordinate information of horizontal ordinate information of actual touch thing is as the two-dimensional coordinate information of touch objects, last processing unit is selected ordinate from the two-dimensional coordinate information of touch objects be that the two-dimensional coordinate information of ordinate information of actual touch thing is as the two-dimensional coordinate information of actual touch thing, thereby can avoid when two the above touch objects in location, " terrible point " occurring, accurately locate actual touch thing position.
Touch localization method the 5th embodiment
Be with the difference of touch localization method first embodiment, in the present embodiment, auxiliary touching and positioning system is specifically as follows the projected capacitive touching and positioning system that comprises one deck touch sensitive layer, the surface acoustic wave type touching and positioning system that perhaps comprises a pair of acoustic wave transducer and a pair of reflective array, the first preliminary positional information is specifically as follows horizontal ordinate information, the second preliminary positional information is specifically as follows ordinate information, auxiliary preliminary positional information is specifically as follows auxiliary doubtful two-dimensional coordinate information, auxiliary doubtful two-dimensional coordinate information comprises all the two-dimensional coordinate information on the touch location path at actual touch thing place, and the positional information of touch objects is specifically as follows the two-dimensional coordinate information of touch objects.
In the present embodiment, auxiliary touching and positioning system forms several and two both not parallel also off plumbs of coordinate axis touch location path, has a storer in the auxiliary touching and positioning system, all two-dimensional coordinate information stores on each touch location path are in this storer, auxiliary touching and positioning system is according to the status information of auxiliary touching and positioning system, determine the touch location path at actual touch thing place, all the two-dimensional coordinate information on the touch location path at actual touch thing place obtained from storer then are as the auxiliary doubtful two-dimensional coordinate information of actual touch thing.
The schematic flow sheet of present embodiment is identical with schematic flow sheet shown in Figure 2, wherein, in step 21, processing unit is selected horizontal ordinate from the auxiliary doubtful two-dimensional coordinate information of actual touch thing be that the two-dimensional coordinate information of horizontal ordinate information of actual touch thing is as the two-dimensional coordinate information of touch objects, in step 22, processing unit is selected ordinate from the two-dimensional coordinate information of touch objects be that the two-dimensional coordinate information of ordinate information of actual touch thing is as the two-dimensional coordinate information of actual touch thing.
Be the course of work that example is introduced present embodiment with two actual touch things below: as shown in Figure 6, be the structural representation of a kind of touching and positioning system among touch localization method the 5th embodiment of the present invention, this touching and positioning system can comprise touch panel, infrared touch positioning system, surface acoustic wave type touching and positioning system and processing unit 33.Touch panel can comprise the four edges edge: first edge 201, second edge 202, the 3rd edge 203 and the 4th edge 204.The infrared touch positioning system can comprise two groups of infrared tubes, every group of infrared tube can comprise infrared emission component 211 and infrared receiver component 212, infrared emission component 211 is installed in first edge 201 and second edge 202, and infrared receiver component 212 is installed in the 3rd edge 203 and the 4th edge 204.The surface acoustic wave type touching and positioning system comprises a transmitting transducer 35a, a receiving transducer 35b, a pair of reflective array 36 and 37, reflective array 36 is installed in the 3rd edge 203, reflective array 37 is installed in first edge 201, transmitting transducer 35a is installed in the angle of cut place at the 3rd edge 203 and the 4th edge 204, receiving transducer 35b is installed in the angle of cut place at first edge 201 and the 4th edge 204, transmitting transducer 35a is used to launch sound wave, receiving transducer 35b is used to receive transmitting transducer 35a institute emitting sound wave, and reflective array 36 and 37 is used for conduct acoustic waves.On first edge 201 and the 3rd edge 203, infrared tube is positioned at the reflective array back, and promptly infrared tube is than more close first edge 201 of reflective array and 203 outsides, the 3rd edge.The two-dimensional coordinate information of actual touch thing P2 ' is (x2 ', y2 ').In the present embodiment, the infrared emission component 211 that is positioned at first edge 201 forms the emission RX path parallel with Y-axis with the infrared receiver component 212 that is positioned at the 3rd edge 203, the infrared emission component 211 that is positioned at second edge 202 forms the emission RX path parallel with X-axis with the infrared receiver component 212 that is positioned at the 4th edge 204, touch the neither parallel also not parallel emission RX path that location path is specially transmitting transducer 35a and receiving transducer 35b formation with X-axis with Y-axis, P1 ' and P2 ' are two actual touch things, the two-dimensional coordinate information of actual touch thing P1 ' is (x1 ', y1 ').
In step 11, processing unit 33 is according to the emission receiving status information of infrared emission component 211 and infrared receiver component 212, obtain horizontal ordinate information x1 ' and the x2 ' of actual touch thing P1 ' and P2 ', and ordinate information y1 ' and the y2 ' of actual touch thing P1 ' and P2 ', processing unit 33 is according to the emission receiving status information of transmitting transducer 35a and receiving transducer 35b, obtain the auxiliary doubtful two-dimensional coordinate information of actual touch thing P1 ' and P2 ', the auxiliary doubtful two-dimensional coordinate information of actual touch thing P1 ' and P2 ' comprises all the two-dimensional coordinate information on the emission RX path at the emission RX path at actual touch thing P1 ' place and actual touch thing P2 ' place.
In step 21, processing unit 33 is selected horizontal ordinate from the auxiliary doubtful two-dimensional coordinate information of actual touch thing P1 ' and P2 ' be that the two-dimensional coordinate information of horizontal ordinate information of actual touch thing P1 ' and P2 ' is as the two-dimensional coordinate information of touch objects, be in all the two-dimensional coordinate information on the emission RX path at actual touch thing P1 ' place horizontal ordinate be actual touch thing P1 ' horizontal ordinate information x1 ' actual touch thing P1 ' two-dimensional coordinate information (x1 ', y1 '), in all two-dimensional coordinate information on the emission RX path at actual touch thing P1 ' place horizontal ordinate be actual touch thing P2 ' horizontal ordinate information x2 ' virtual touch thing P4 ' two-dimensional coordinate information (x2 ', y4 '), in all two-dimensional coordinate information on the emission RX path at actual touch thing P2 place horizontal ordinate be actual touch thing P1 ' horizontal ordinate information x1 virtual touch thing P3 ' two-dimensional coordinate information (x1 ', y3 '), and horizontal ordinate is the two-dimensional coordinate information (x2 ', y2 ') of actual touch thing P2 ' of the horizontal ordinate information x2 ' of actual touch thing P2 ' in all the two-dimensional coordinate information on the emission RX path at actual touch thing P2 ' place.
In step 22, processing unit 33 is from the positional information of P1 ', P2 ', P3 ' and four touch objects of P4 ', select ordinate be the ordinate information y1 ' of actual touch thing P1 ' two-dimensional coordinate information (x1 ', y1 '), and ordinate is the two-dimensional coordinate information of the two-dimensional coordinate information (x2 ', y2 ') of the ordinate information y2 ' of actual touch thing P2 ' as the actual touch thing.
As shown in Figure 7, be the structural representation of another kind of touching and positioning system among touch localization method the 5th embodiment of the present invention, this touching and positioning system can comprise touch panel, infrared touch positioning system, projected capacitive touching and positioning system and processing unit 33.Touch panel can comprise the four edges edge: first edge 201, second edge 202, the 3rd edge 203 and the 4th edge 204.The infrared touch positioning system comprises two groups of infrared tubes, every group of infrared tube can comprise infrared emission component 211 and infrared receiver component 212, infrared emission component 211 is installed in first edge 201 and second edge 202, and infrared receiver component 212 is installed in the 3rd edge 203 and the 4th edge 204.The projected capacitive touching and positioning system includes only one deck touch sensitive layer, this touch sensitive layer comprises the capacitance touch induction bar 38 that is parallel to each other, capacitance touch induction bar 38 is made by transparent conductive material, and an end of capacitance touch induction bar 38 is connected to processing unit 33 by the plumbous lead 39 of communication.Alternatively, can also a transparency carrier respectively be installed, with protection capacitance touch induction bar 38 in the above and below of touch sensitive layer.In the present embodiment, the infrared emission component 211 that is positioned at first edge 201 forms the emission RX path parallel with Y-axis with the infrared receiver component 212 that is positioned at the 3rd edge 203, the infrared emission component 211 that is positioned at second edge 202 forms the emission RX path parallel with X-axis with the infrared receiver component 212 that is positioned at the 4th edge 204, touches location path and is specially neither parallel with X-axis also not parallel with Y-axis capacitance touch induction bar 38.
Be with the difference of the course of work of structural representation shown in Figure 6, in step 11, processing unit 33 is according to the strength of current status information of capacitance touch induction bar 38, obtain the position of the capacitance touch induction bar 38 at actual touch thing P1 ' and P2 ' place, further obtain the auxiliary doubtful two-dimensional coordinate information of actual touch thing P1 ' and P2 ', the auxiliary doubtful two-dimensional coordinate information of actual touch thing P1 ' and P2 ' comprises all the two-dimensional coordinate information on the capacitance touch induction bar 38 at the capacitance touch induction bar 38 at actual touch thing P1 ' place and actual touch thing P2 ' place.
In the present embodiment, processing unit adopts the infrared touch positioning system to obtain the horizontal ordinate information and the ordinate information of actual touch thing, adopt auxiliary touching and positioning system to obtain the auxiliary doubtful two-dimensional coordinate information of actual touch thing, then, processing unit is selected horizontal ordinate from the auxiliary doubtful two-dimensional coordinate information of actual touch thing be that the two-dimensional coordinate information of horizontal ordinate information of actual touch thing is as the two-dimensional coordinate information of touch objects, at last, processing unit is selected ordinate from the two-dimensional coordinate information of touch objects be that the two-dimensional coordinate information of ordinate information of actual touch thing is as the two-dimensional coordinate information of actual touch thing, thereby can avoid when two the above touch objects in location, " terrible point " occurring, accurately locate actual touch thing position.
Touching and positioning system first embodiment
As shown in Figure 8, be the structural representation of touching and positioning system first embodiment of the present invention, can comprise infrared touch positioning system 71, auxiliary touching and positioning system 72, touch objects position information acquisition module 73 and actual touch object location information acquisition module 74.Wherein, touch objects position information acquisition module 73 is connected with auxiliary touching and positioning system 72 with infrared touch positioning system 71, and actual touch object location information acquisition module 74 is connected with infrared touch positioning system 71 with touch objects position information acquisition module 73.One of surface acoustic wave type touching and positioning system that auxiliary touching and positioning system 72 is specifically as follows the optical touch positioning system that comprises an imaging device, the projected capacitive touching and positioning system that comprises a touch sensitive layer and comprises a pair of acoustic wave transducer and a pair of emission array.
Infrared touch positioning system 71 is used to obtain the first preliminary positional information and the second preliminary positional information of actual touch thing.Auxiliary touching and positioning system 72 is used to obtain the auxiliary preliminary positional information of actual touch thing.Touch objects position information acquisition module 73 is used for obtaining the positional information of touch objects according to first preliminary positional information of actual touch thing and auxiliary preliminary positional information, and this touch objects comprises actual touch thing and virtual touch thing.Actual touch object location information acquisition module 74 is used for the second preliminary positional information according to the actual touch thing, obtains the positional information of actual touch thing from the positional information of touch objects.
In the present embodiment, infrared touch positioning system 71 is obtained the first preliminary positional information and the second preliminary positional information of actual touch thing, auxiliary touching and positioning system 72 obtains the auxiliary preliminary positional information of actual touch thing, then, touch objects position information acquisition module 73 is according to the first preliminary positional information and the auxiliary preliminary positional information of actual touch thing, obtain the positional information of touch objects, at last, actual touch object location information acquisition module 74 is according to the second preliminary positional information of actual touch thing, from the positional information of touch objects, obtain the positional information of actual touch thing, thereby avoided when two the above touch objects in location, " terrible point " occurring, accurately located the touch objects position.
Touching and positioning system second embodiment
As shown in Figure 9, structural representation for touching and positioning system second embodiment of the present invention, be with the difference of structural representation shown in Figure 8, in the present embodiment, auxiliary touching and positioning system 72 is specifically as follows the optical touch positioning system 82 that comprises an imaging device, touch objects position information acquisition module 73 is specifically as follows touch objects two-dimensional coordinate information calculations module 83, and actual touch object location information acquisition module 74 is specifically as follows actual touch thing two-dimensional coordinate information acquisition module 84.
In addition, in the present embodiment, the first preliminary positional information is specifically as follows horizontal ordinate information, the second preliminary positional information is specifically as follows ordinate information, auxiliary touching position information is specifically as follows first angle, first angle is the line of photocentre of actual touch thing position and imaging device and the angle of coordinate axis, and this coordinate axis can be X-axis or Y-axis, and the positional information of touch objects is specifically as follows the two-dimensional coordinate information of touch objects.
Touch objects two-dimensional coordinate information calculations module 83 is used for the horizontal ordinate information and first angle according to the actual touch thing, calculates the two-dimensional coordinate information of touch objects.It is that the two-dimensional coordinate information of ordinate information of actual touch thing is as the two-dimensional coordinate information of actual touch thing that actual touch thing two-dimensional coordinate information acquisition module 84 is used for selecting ordinate from the two-dimensional coordinate information of touch objects.
The concrete structure synoptic diagram of present embodiment can be referring to structural representation shown in Figure 3, and the concrete course of work of present embodiment can not repeat them here referring to touch localization method second embodiment.
In the present embodiment, infrared touch positioning system 71 is obtained the horizontal ordinate information and the ordinate information of actual touch thing, optical touch positioning system 82 is obtained first angle of actual touch thing, then, touch objects two-dimensional coordinate information calculations module 83 is according to the horizontal ordinate information and first angle of actual touch thing, calculate the two-dimensional coordinate information of touch objects, at last, actual touch thing two-dimensional coordinate information acquisition module 84 is selected ordinate from the two-dimensional coordinate information of touch objects be that the two-dimensional coordinate information of ordinate information of actual touch thing is as the two-dimensional coordinate information of actual touch thing, thereby avoided when two the above touch objects in location, " terrible point " occurring, accurately located the touch objects position.
Touching and positioning system the 3rd embodiment
As shown in figure 10, structural representation for touching and positioning system the 3rd embodiment of the present invention, be that with the difference of structural representation shown in Figure 8 touch objects position information acquisition module 73 can comprise auxiliary doubtful location information acquiring unit 91 of actual touch thing and touch objects location information acquiring unit 92.Wherein, the auxiliary doubtful location information acquiring unit 91 of actual touch thing is connected with auxiliary touching and positioning system 72, touch objects location information acquiring unit 92 is connected with infrared touch positioning system 71 with touch objects location information acquiring unit 91, and actual touch object location information acquisition module 74 is connected with infrared touch positioning system 71 with touch objects location information acquiring unit 92.
The auxiliary doubtful location information acquiring unit 91 of actual touch thing is used for the auxiliary preliminary positional information according to the actual touch thing, obtains the auxiliary doubtful positional information of actual touch thing.Touch objects location information acquiring unit 92 is used for the first preliminary positional information according to the actual touch thing, obtains the positional information of touch objects from auxiliary doubtful positional information.
In the present embodiment, infrared touch positioning system 71 is obtained the first preliminary positional information and the second preliminary positional information of actual touch thing, auxiliary touching and positioning system 72 obtains the auxiliary preliminary positional information of actual touch thing, then, the auxiliary doubtful location information acquiring unit 91 of actual touch thing is according to the auxiliary preliminary positional information of actual touch thing, obtain the auxiliary doubtful positional information of actual touch thing, touch objects location information acquiring unit 92 is according to the first preliminary positional information of actual touch thing, from the auxiliary doubtful positional information of actual touch thing, obtain the positional information of touch objects, at last, actual touch object location information acquisition module 74 is according to the second preliminary positional information of actual touch thing, from the positional information of touch objects, obtain the positional information of actual touch thing, thereby avoided when two the above touch objects in location, " terrible point " occurring, accurately located the touch objects position.
Touching and positioning system the 4th embodiment
As shown in figure 11, structural representation for touching and positioning system the 4th embodiment of the present invention, be with the difference of a last embodiment, in the present embodiment, auxiliary touching and positioning system 72 is specifically as follows the optical touch positioning system 82 that comprises an imaging device, the auxiliary doubtful location information acquiring unit 91 of actual touch thing is specifically as follows the auxiliary doubtful two-dimensional coordinate information query unit 111 of actual touch thing, touch objects location information acquiring unit 92 is specifically as follows touch objects two-dimensional coordinate information acquisition unit 112, and actual touch object location information acquisition module 74 is specifically as follows actual touch thing two-dimensional coordinate information acquisition module 84.Present embodiment can also comprise storer 113, is connected with the auxiliary doubtful two-dimensional coordinate information query unit 111 of actual touch thing.
In addition, in the present embodiment, the first preliminary positional information is specifically as follows horizontal ordinate information, the second preliminary positional information is specifically as follows ordinate information, auxiliary touching position information is specifically as follows first angle, first angle is the line of photocentre of actual touch thing position and imaging device and the angle of coordinate axis, this coordinate axis can be X-axis or Y-axis, auxiliary doubtful positional information is specifically as follows auxiliary doubtful two-dimensional coordinate information, and the positional information of touch objects is specifically as follows the two-dimensional coordinate information of touch objects.
Wherein, storer 113 is used to store from the photocentre of imaging device to touching that detection zone extends and being all two-dimensional coordinate information on the straight line of different angles with coordinate axis.The auxiliary doubtful two-dimensional coordinate information query unit 111 of actual touch thing is used for according to first angle, and inquiry obtains all two-dimensional coordinate information on the line place straight line of photocentre of actual touch thing position and imaging device as the auxiliary doubtful two-dimensional coordinate information of actual touch thing from storer 113.It is that the two-dimensional coordinate information of horizontal ordinate information of actual touch thing is as the two-dimensional coordinate information of touch objects that touch objects two-dimensional coordinate information acquisition unit 112 is used for selecting horizontal ordinate from the auxiliary doubtful two-dimensional coordinate information of actual touch thing.It is that the two-dimensional coordinate information of ordinate information of actual touch thing is as the two-dimensional coordinate information of actual touch thing that actual touch thing two-dimensional coordinate information acquisition module 84 is used for selecting ordinate from the two-dimensional coordinate information of touch objects.
The concrete structure synoptic diagram of present embodiment can be referring to structural representation shown in Figure 3, and the concrete course of work of present embodiment can not repeat them here referring to touch localization method the 4th embodiment.
In the present embodiment, infrared touch positioning system 71 is obtained the horizontal ordinate information and the ordinate information of actual touch thing, optical touch positioning system 82 is obtained first angle of actual touch thing, then, the auxiliary doubtful two-dimensional coordinate information query unit 111 of actual touch thing is according to first angle of actual touch thing, inquiry obtains all two-dimensional coordinate information on the line place straight line of photocentre of actual touch thing position and imaging device as the auxiliary doubtful two-dimensional coordinate information of actual touch thing from storer 113, touch objects two-dimensional coordinate information acquisition unit 112 is selected horizontal ordinate from the auxiliary doubtful two-dimensional coordinate information of actual touch thing be that the two-dimensional coordinate information of horizontal ordinate information of actual touch thing is as the two-dimensional coordinate information of touch objects, at last, actual touch thing two-dimensional coordinate information acquisition module 84 is selected ordinate from the two-dimensional coordinate information of touch objects be that the two-dimensional coordinate information of ordinate information of actual touch thing is as the two-dimensional coordinate information of actual touch thing, thereby avoided when two the above touch objects in location, " terrible point " occurring, accurately located the touch objects position.
Touching and positioning system the 5th embodiment
As shown in figure 12, structural representation for touching and positioning system the 5th embodiment of the present invention, be with the difference of structural representation shown in Figure 8, auxiliary touching and positioning system 72 is specifically as follows the projected capacitive touching and positioning system that comprises one deck touch sensitive layer, the surface acoustic wave type touching and positioning system that perhaps comprises a pair of acoustic wave transducer and a pair of reflective array, touch objects position information acquisition module 73 is specifically as follows touch objects two-dimensional coordinate information acquisition module 123, and actual touch object location information acquisition module 74 is specifically as follows actual touch thing two-dimensional coordinate information acquisition module 84.
In addition, in the present embodiment, the first preliminary positional information is specifically as follows horizontal ordinate information, the second preliminary positional information is specifically as follows ordinate information, auxiliary preliminary positional information is specifically as follows auxiliary doubtful two-dimensional coordinate information, auxiliary doubtful two-dimensional coordinate information comprises all the two-dimensional coordinate information on the touch location path at actual touch thing place, and the positional information of touch objects is specifically as follows the two-dimensional coordinate information of touch objects.
In the present embodiment, has a storer in the auxiliary touching and positioning system 72, all two-dimensional coordinate information stores on each touch location path are in this storer, auxiliary touching and positioning system 72 can be according to the status information of auxiliary touching and positioning system 72, and all the two-dimensional coordinate information on the touch location path at actual touch thing place obtained from storer are as the auxiliary doubtful two-dimensional coordinate information of actual touch thing.
It is that the two-dimensional coordinate information of horizontal ordinate information of actual touch thing is as the two-dimensional coordinate information of touch objects that touch objects two-dimensional coordinate information acquisition module 123 is used for selecting horizontal ordinate from the auxiliary doubtful two-dimensional coordinate information of actual touch thing.It is that the two-dimensional coordinate information of ordinate information of actual touch thing is as the two-dimensional coordinate information of actual touch thing that actual touch thing two-dimensional coordinate information acquisition module 84 is used for selecting ordinate from the two-dimensional coordinate information of touch objects.
The concrete structure synoptic diagram of present embodiment can be referring to Fig. 6 and Fig. 7, and the concrete course of work of present embodiment can not repeat them here referring to touch localization method the 5th embodiment.
In the present embodiment, infrared touch positioning system 71 is obtained the horizontal ordinate information and the ordinate information of actual touch thing, auxiliary touching and positioning system 72 obtains the auxiliary doubtful two-dimensional coordinate information of actual touch thing, then, touch objects two-dimensional coordinate information acquisition module 123 is selected horizontal ordinate from the auxiliary doubtful two-dimensional coordinate information of actual touch thing be that the two-dimensional coordinate information of horizontal ordinate information of actual touch thing is as the two-dimensional coordinate information of touch objects, actual touch thing two-dimensional coordinate information acquisition module 84 is selected ordinate from the two-dimensional coordinate information of touch objects be that the two-dimensional coordinate information of ordinate information of actual touch thing is as the two-dimensional coordinate information of actual touch thing, thereby avoided when two the above touch objects in location, " terrible point " occurring, accurately located the touch objects position.
Technical solutions according to the invention are not limited to the embodiment described in the embodiment.Those skilled in the art's technical scheme according to the present invention draws other embodiment, belongs to technological innovation scope of the present invention equally.
Claims (10)
1. touch localization method, it is characterized in that, described method is applied to comprise the touching and positioning system of an infrared touch positioning system and an auxiliary touching and positioning system, described auxiliary touching and positioning system is the optical touch positioning system that comprises an imaging device, comprises the projected capacitive touching and positioning system of one deck touch sensitive layer and comprise one of surface acoustic wave type touching and positioning system of a pair of acoustic wave transducer and a pair of reflective array that described method comprises:
Adopt described infrared touch positioning system to obtain the first preliminary positional information and the second preliminary positional information of actual touch thing, adopt described auxiliary touching and positioning system to obtain the auxiliary preliminary positional information of described actual touch thing;
According to the described first preliminary positional information and described auxiliary preliminary positional information, obtain the positional information of touch objects, described touch objects comprises described actual touch thing and virtual touch thing;
According to the described second preliminary positional information, from the positional information of described touch objects, obtain the positional information of described actual touch thing.
2. method according to claim 1 is characterized in that, described according to the described first preliminary positional information and described auxiliary preliminary positional information, the positional information of obtaining touch objects comprises:
According to described auxiliary preliminary positional information, obtain the auxiliary doubtful positional information of described actual touch thing;
According to the described first preliminary positional information, from described auxiliary doubtful positional information, obtain the positional information of described touch objects.
3. method according to claim 1, it is characterized in that, described auxiliary touching and positioning system is specially the optical touch positioning system that comprises an imaging device, the described first preliminary positional information is specially horizontal ordinate information, the described second preliminary positional information is specially ordinate information, described auxiliary touching position information is specially first angle, the line of the photocentre that described first angle is described actual touch thing position and described imaging device and the angle of coordinate axis, the positional information of described touch objects are specially the two-dimensional coordinate information of described touch objects;
Described according to the described first preliminary positional information and described auxiliary preliminary positional information, the positional information of obtaining touch objects is specially: according to the horizontal ordinate information and described first angle of described actual touch thing, calculate the two-dimensional coordinate information of described touch objects;
Described according to the described second preliminary positional information, the positional information of obtaining described actual touch thing from the positional information of described touch objects is specially: selecting ordinate from the two-dimensional coordinate information of described touch objects is that the two-dimensional coordinate information of ordinate information of described actual touch thing is as the two-dimensional coordinate information of described actual touch thing.
4. method according to claim 2, it is characterized in that, described auxiliary touching and positioning system is specially the optical touch positioning system that comprises an imaging device, the described first preliminary positional information is specially horizontal ordinate information, the described second preliminary positional information is specially ordinate information, described auxiliary touching position information is specially first angle, the line of the photocentre that described first angle is described actual touch thing position and described imaging device and the angle of coordinate axis, described auxiliary doubtful positional information is specially auxiliary doubtful two-dimensional coordinate information, and the positional information of described touch objects is specially the two-dimensional coordinate information of described touch objects;
Described according to described auxiliary preliminary positional information, the auxiliary doubtful positional information of obtaining described actual touch thing is specially: according to described first angle, inquiry obtains all two-dimensional coordinate information on the line place straight line of photocentre of described actual touch thing position and described imaging device as the auxiliary doubtful two-dimensional coordinate information of described actual touch thing from storer;
Described according to the described first preliminary positional information, the positional information of obtaining described touch objects from described auxiliary doubtful positional information is specially: the selection horizontal ordinate is that the two-dimensional coordinate information of horizontal ordinate information of described actual touch thing is as the two-dimensional coordinate information of described touch objects from the auxiliary doubtful two-dimensional coordinate information of described actual touch thing;
Described according to the described second preliminary positional information, the positional information of obtaining described actual touch thing from the positional information of described touch objects is specially: selecting ordinate from the two-dimensional coordinate information of described touch objects is that the two-dimensional coordinate information of ordinate information of described actual touch thing is as the two-dimensional coordinate information of described actual touch thing.
5. method according to claim 1, it is characterized in that, described auxiliary touching and positioning system is the projected capacitive touching and positioning system that comprises one deck touch sensitive layer, the surface acoustic wave type touching and positioning system that perhaps comprises a pair of acoustic wave transducer and a pair of reflective array, the described first preliminary positional information is specially horizontal ordinate information, the described second preliminary positional information is specially ordinate information, described auxiliary preliminary positional information is specially auxiliary doubtful two-dimensional coordinate information, described auxiliary doubtful two-dimensional coordinate information comprises all the two-dimensional coordinate information on the touch location path at described actual touch thing place, and the positional information of described touch objects is specially the two-dimensional coordinate information of described touch objects;
Described according to the described first preliminary positional information and described auxiliary preliminary positional information, the positional information of obtaining touch objects is specially: the selection horizontal ordinate is that the two-dimensional coordinate information of horizontal ordinate information of described actual touch thing is as the two-dimensional coordinate information of described touch objects from the auxiliary doubtful two-dimensional coordinate information of described actual touch thing;
Described according to the described second preliminary positional information, the positional information of obtaining described actual touch thing from the positional information of described touch objects is specially: selecting ordinate from the two-dimensional coordinate information of described touch objects is that the two-dimensional coordinate information of ordinate information of described actual touch thing is as the two-dimensional coordinate information of described actual touch thing.
6. a touching and positioning system is characterized in that, comprising:
The infrared touch positioning system is used to obtain the first preliminary positional information and the second preliminary positional information of actual touch thing;
Assist touching and positioning system, be used to obtain the auxiliary preliminary positional information of described actual touch thing;
The touch objects position information acquisition module is used for obtaining the positional information of touch objects according to the described first preliminary positional information and described auxiliary preliminary positional information, and described touch objects comprises described actual touch thing and virtual touch thing;
Actual touch object location information acquisition module is used for obtaining the positional information of described actual touch thing according to the described second preliminary positional information from the positional information of described touch objects;
Wherein, described auxiliary touching and positioning system is the optical touch positioning system that comprises an imaging device, comprises the projected capacitive touching and positioning system of one deck touch sensitive layer and comprise one of surface acoustic wave type touching and positioning system of a pair of acoustic wave transducer and a pair of reflective array.
7. touching and positioning system according to claim 6 is characterized in that, described touch objects position information acquisition module comprises:
The actual touch thing is assisted doubtful location information acquiring unit, is used for obtaining the auxiliary doubtful positional information of described actual touch thing according to described auxiliary preliminary positional information;
The touch objects location information acquiring unit is used for according to the described first preliminary positional information, obtains the positional information of described touch objects from described auxiliary doubtful positional information.
8. touching and positioning system according to claim 6, it is characterized in that, described auxiliary touching and positioning system is specially the optical touch positioning system that comprises an imaging device, the described first preliminary positional information is specially horizontal ordinate information, the described second preliminary positional information is specially ordinate information, described auxiliary touching position information is specially first angle, the line of the photocentre that described first angle is described actual touch thing position and described imaging device and the angle of coordinate axis, the positional information of described touch objects are specially the two-dimensional coordinate information of described touch objects;
Described touch objects position information acquisition module is specially: touch objects two-dimensional coordinate information calculations module, be used for horizontal ordinate information and described first angle according to described actual touch thing, and calculate the two-dimensional coordinate information of described touch objects;
Described actual touch object location information acquisition module is specially: actual touch thing two-dimensional coordinate information acquisition module, being used for selecting ordinate from the two-dimensional coordinate information of described touch objects is that the two-dimensional coordinate information of ordinate information of described actual touch thing is as the two-dimensional coordinate information of described actual touch thing.
9. touching and positioning system according to claim 7, it is characterized in that, described auxiliary touching and positioning system is specially the optical touch positioning system that comprises an imaging device, the described first preliminary positional information is specially horizontal ordinate information, the described second preliminary positional information is specially ordinate information, described auxiliary touching position information is specially first angle, the line of the photocentre that described first angle is described actual touch thing position and described imaging device and the angle of coordinate axis, described auxiliary doubtful positional information is specially auxiliary doubtful two-dimensional coordinate information, and the positional information of described touch objects is specially the two-dimensional coordinate information of described touch objects;
Described touching and positioning system also comprises storer, is used to store from the photocentre of described imaging device to touching that detection zone extends and being all two-dimensional coordinate information on the straight line of different angles with described coordinate axis;
The auxiliary doubtful location information acquiring unit of described actual touch thing is specially: the actual touch thing is assisted doubtful two-dimensional coordinate information query unit, be used for according to described first angle, inquiry obtains all two-dimensional coordinate information on the line place straight line of photocentre of described actual touch thing position and described imaging device as the auxiliary doubtful two-dimensional coordinate information of described actual touch thing from storer;
Described touch objects location information acquiring unit is specially: touch objects two-dimensional coordinate information acquisition unit, and being used for selecting horizontal ordinate from the auxiliary doubtful two-dimensional coordinate information of described actual touch thing is that the two-dimensional coordinate information of horizontal ordinate information of described actual touch thing is as the two-dimensional coordinate information of described touch objects;
Described actual touch object location information acquisition module is specially: actual touch thing two-dimensional coordinate information acquisition module, being used for selecting ordinate from the two-dimensional coordinate information of described touch objects is that the two-dimensional coordinate information of ordinate information of described actual touch thing is as the two-dimensional coordinate information of described actual touch thing.
10. touching and positioning system according to claim 6, it is characterized in that, described auxiliary touching and positioning system is the projected capacitive touching and positioning system that comprises one deck touch sensitive layer, the surface acoustic wave type touching and positioning system that perhaps comprises a pair of acoustic wave transducer and a pair of reflective array, the described first preliminary positional information is specially horizontal ordinate information, the described second preliminary positional information is specially ordinate information, described auxiliary preliminary positional information is specially auxiliary doubtful two-dimensional coordinate information, described auxiliary doubtful two-dimensional coordinate information comprises all the two-dimensional coordinate information on the touch location path at described actual touch thing place, and the positional information of described touch objects is specially the two-dimensional coordinate information of described touch objects;
Described touch objects position information acquisition module is specially: touch objects two-dimensional coordinate information acquisition module, and being used for selecting horizontal ordinate from the auxiliary doubtful two-dimensional coordinate information of described actual touch thing is that the two-dimensional coordinate information of horizontal ordinate information of described actual touch thing is as the two-dimensional coordinate information of described touch objects;
Described actual touch object location information acquisition module is specially: actual touch thing two-dimensional coordinate information acquisition module, being used for selecting ordinate from the two-dimensional coordinate information of described touch objects is that the two-dimensional coordinate information of ordinate information of described actual touch thing is as the two-dimensional coordinate information of described actual touch thing.
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