CN102298469A - Portable optical touch system and method for sensing object position - Google Patents
Portable optical touch system and method for sensing object position Download PDFInfo
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- CN102298469A CN102298469A CN2010102190017A CN201010219001A CN102298469A CN 102298469 A CN102298469 A CN 102298469A CN 2010102190017 A CN2010102190017 A CN 2010102190017A CN 201010219001 A CN201010219001 A CN 201010219001A CN 102298469 A CN102298469 A CN 102298469A
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Abstract
The invention relates to a portable optical touch system and a method for sensing an object position. The portable optical touch system comprises a first image sensing module, a second image sensing module, a length adjustable connection device, a communication interface and a processing circuit, wherein the sensed ranges of the two image sensing modules are overlapped partially and the partially overlapped zone is used for defining a touch zone; the length adjustable connection device is connected with the first image sensing module and the second image sensing module and is used for adjusting the distance between the two image sensing modules; and when an object is arranged in the touch zone, the processing circuit computes the coordinate of the object according to the images of the object sensed by the two image sensing modules and outputs the coordinate via the communication interface.
Description
Technical field
The present invention relates to the technology in touch-control field, and particularly relate to the method for a kind of portable optical touch-control system, portable optical contactor control device and object sensing position.
Background technology
Fig. 1 is the stereographic map of existing a kind of optical touch system.Please refer to Fig. 1, optical touch system 100 includes panel 104, image sensing module 106 and 108, treatment circuit 110, reflection subassembly 112, reflection subassembly 114 and reflection subassembly 116.In addition, the quadrilateral area of label 118 indications among the figure is in order to the touch area as optical touch system 100, and image sensing module 106 and 108 is arranged on two different corners of above-mentioned touch area 118, makes the sensing range of these two image sensing modules can contain touch area 118 respectively.In this example, touch area 118 be shaped as quadrilateral, and be preferably rectangle.And label 102 object that refers among the figure.
In these members of optical touch system 100, reflection subassembly 112, reflection subassembly 114 are constituted by retro-reflection material (retro-reflective material) with reflection subassembly 116, all in order to incident ray (as infrared light) is reflexed in the touch area 118. Image sensing module 106 and 108 is all in order to the image in the acquisition touch area 118.Treatment circuit 110 is then in order to receiving image sensing module 106 and 108 images that capture, and calculates object 102 in the image with respect to the coordinate of touch area 118 according to image sensing module 106 and 108 images that capture.
Fig. 2 carries out the key diagram of single-point touch for the optical touch system of Fig. 1.In Fig. 2, label is expressed as identical components with the identical person of label among Fig. 1.As shown in Figure 2, image sensing module 106 can sense object 102 along sensing route 202, and image sensing module 108 then energy senses object 102 along sensing route 204.Therefore,, and calculate the intersection point of sensing route 202 and 204, just can obtain the coordinate of object 102 as long as treatment circuit 110 can be obtained sensing route 202 and 204 these two equation of line.
To illustrate below how optical touch system 100 obtains sensing route 202 and 204 these two equation of line, so this will be earlier describes from the structure of image sensing module 106 and 108.
With image sensing module 106 is example, and its structure one as shown in Figure 3.Fig. 3 is the organigram of image sensing module 106.Please refer to Fig. 3, infrared light filtering apparatus 306 and image sensor 308 that image sensing module 106 includes infrared light emitter 302, optical mirror slip group 304, can only allow infrared light pass through.Wherein, infrared light emitter 302 shines touch area 118, reflection subassembly 112, reflection subassembly 114 and reflection subassembly 116 in order to the emission infrared light, image sensor 308 is then obtained image in the touch area 118 in order to see through infrared light filtering apparatus 306 and optical mirror slip group 304 in regular turn, so that send the image of obtaining to treatment circuit 110.When object 102 was positioned at touch area 118, image sensing module 106 just can be obtained the image that contains object 102, as shown in Figure 4.
The synoptic diagram of the image that Fig. 4 is sensed for image sensing module 106.In Fig. 4, the white portion of label 402 indications promptly is that infrared lights shine reflection subassemblies 114 and 116 light that reflected form the higher clear zone of brightness (bright zone) in image because of infrared light emitter 302 is launched, and above-mentioned clear zone 402 is exactly main sensing area.And being exactly object 102, label 404 covers the dark space that clear zone 402 is caused.
By Fig. 2 and Fig. 4 as can be known, as long as treatment circuit 110 can be learnt the center of gravity or the center of angle [alpha] (being sensing route 202 and the angle of 118 tops, touch area) and dark space 404, just can further calculate the equation of line of sensing route 202.In like manner, treatment circuit 110 also can calculate the equation of line of sensing route 204 according to identical mode.And the coordinate of object 102 is the intersection point of sensing route 202 and 204.
Shown in Figure 1 this optical touch system can carry out the function that similar mouse, keyboard or Trackpad etc. are used for user's input interface of computing machine, allows the user directly can carry out input operation with finger.Yet because optical touch system 100 must have panel 104, reflection subassembly 112, the reflection subassembly 114 of entity to operate with reflection subassembly 116, so environment for use is restricted.Moreover entity panel 104, reflection subassembly 112, reflection subassembly 114 is not cheap with the price of reflection subassembly 116, makes that the cost of this optical touch system is high.In addition, because panel 104 has certain volume, and reflection subassembly 112, reflection subassembly 114 also have certain-length with reflection subassembly 116, makes the size of optical touch system 100 can't contract forr a short time and be easy to carry.
By as can be known aforementioned, environment for use, cost, volume and Portability have problem to be solved for existing optical touch system 100.
Summary of the invention
In order to overcome the deficiency that existing touch-control system is not easy to carry, the invention provides a kind of portable optical touch-control system, a kind of portable optical contactor control device and a kind of method that is applicable to aforesaid portable optical touch-control system and device object sensing position.
The present invention proposes a kind of portable optical touch-control system, and it includes first image sensing module, second image sensing module, adjustable in length coupling arrangement, communication interface and treatment circuit.The sensing range of above-mentioned two image sensing modules is partly to overlap, and the zone that above-mentioned part overlaps is in order to define a touch area.The adjustable in length coupling arrangement connects first image sensing module and second image sensing module, in order to adjust the distance between first image sensing module and second image sensing module.Be positioned at the touch area as an object, treatment circuit just calculates the coordinate of object according to the image of above-mentioned two objects that image sensing module sensed, and exports described coordinate through communication interface.
The present invention proposes a kind of portable optical touch-control system in addition, and it includes first image sensing module, second image sensing module, coupling arrangement, communication interface and treatment circuit.The sensing range of above-mentioned two image sensing modules is partly to overlap, and the zone that above-mentioned part overlaps is in order to define a touch area.Coupling arrangement connects first image sensing module and second image sensing module, and wherein the distance between first image sensing module and second image sensing module is a predetermined length.Be positioned at the touch area as an object, treatment circuit just calculates the coordinate of object according to the image of above-mentioned two objects that image sensing module sensed, and exports described coordinate through communication interface.
But the present invention proposes the portable optical contactor control device of at least one object space of a kind of sensing again, and it includes first image sensing module, second image sensing module, treatment circuit and display screen.First image sensing module includes first image sensor, the first infrared light emitter, the first infrared light filtering apparatus and one first optical mirror slip group again.Second image sensing module includes second image sensor, the second infrared light emitter, the second infrared light filtering apparatus and the second optical mirror slip group again.Wherein, the sensing range of first image sensing module and second image sensing module is partly to overlap, and the zone that part overlaps is in order to define a touch area.The first infrared light emitter and the second infrared light emitter are positioned at an object of touch area with irradiation in order to the emission infrared light.First image sensing module and second image sensing module see through the image that the first infrared light filtering apparatus and the second infrared light filtering apparatus are obtained the object reflects infrared light respectively respectively.The first optical mirror slip group and the second optical mirror slip group are arranged on first image sensor and second image sensor the place ahead respectively, are used for making the visual angle of pairing image sensor to present at least 90 degree.Treatment circuit calculates and exports the coordinate of object in order to the image according to above-mentioned two objects that image sensing module sensed.As for display screen, it is in order to the object coordinates that shows and the reaction treatment circuit is exported.
But the present invention reintroduces the portable optical contactor control device of at least one object space of a kind of sensing, and it includes first image sensing module, second image sensing module, treatment circuit and display screen.First image sensing module includes first image sensor, the first optical mirror slip group, the first laser light emitter and first optical mirror slip again.Second image sensing module includes second image sensor, the second optical mirror slip group, the second laser light emitter and second optical mirror slip again.Wherein, the sensing range of first image sensing module and second image sensing module is partly to overlap, and the zone that part overlaps is in order to define a touch area.The first laser light emitter and the second laser light emitter are converted to a line laser light to shine an object that is positioned at the touch area respectively in order to launch some laser light and to see through first optical mirror slip and second optical mirror slip respectively respectively.First image sensor and second image sensor are in order to see through the image that the first optical mirror slip group and the second optical mirror slip group obtain object reflected ray laser light respectively.The first optical mirror slip group and the second optical mirror slip group are used for making the visual angle of pairing image sensor to present at least 90 degree respectively.Treatment circuit calculates and exports the coordinate of object in order to the image according to above-mentioned two objects that image sensing module sensed.As for display screen, it is in order to the object coordinates that shows and the reaction treatment circuit is exported.
The present invention also proposes the method for a kind of object sensing position, and it is applicable to a portable optical touch-control system.Described portable optical touch-control system includes first image sensing module, second image sensing module, adjustable in length coupling arrangement, treatment circuit and communication interface.Wherein, the sensing range of above-mentioned two image sensing modules is partly to overlap, and the zone that above-mentioned part overlaps is used for defining a touch area.The adjustable in length coupling arrangement connects first image sensing module and second image sensing module, in order to adjust the distance between first image sensing module and second image sensing module.Said method includes: the image that is positioned at the object of touch area by above-mentioned two image sensing modules acquisition; Calculate the coordinate of object according to the image of above-mentioned two objects that image sensing module captured by treatment circuit; And the coordinate of exporting object by communication interface.
The present invention adopts two image sensing modules and a treatment circuit to make up a portable optical touch-control system.In practical design, be that the sensing range of two image sensing modules is partly overlapped, the zone that makes above-mentioned part overlap can be used to define a touch area.Thus, be positioned at the touch area as an object, treatment circuit just can calculate the coordinate of object according to the image of these two objects that image sensing module sensed.And in further designing, can make two image sensing modules emission infrared lights or laser light with irradiating object, and obtain the image of object reflects infrared light or laser light by this, allow treatment circuit can calculate the coordinate of object according to such image.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the stereographic map of existing a kind of optical touch system.
Fig. 2 carries out the key diagram of single-point touch for the optical touch system of Fig. 1.
Fig. 3 is the organigram of image sensing module 106.
The synoptic diagram of the image that Fig. 4 is sensed for image sensing module 106.
Fig. 5 is the schematic perspective view according to the portable optical touch-control system of one embodiment of the invention.
Fig. 6 also is the schematic perspective view of portable optical touch-control system shown in Figure 5.
Fig. 7 is the schematic diagram in top down perspective of portable optical touch-control system shown in Figure 5.
Fig. 8 is the side-looking perspective diagram of image sensing module 510.
Fig. 9 carries out the key diagram of single-point touch for portable optical touch-control system shown in Figure 7.
Figure 10 is that treatment circuit 570 receives the image data of two image sensors 512 and 532 and the synoptic diagram of subsequent treatment.
Object space in the image that Figure 11 senses for image sensor 512 and corresponding angle figure.
Figure 12 illustrates another set-up mode of the internals of image sensing module 510.
Figure 13 illustrates the account form in the visual field farthest.
Figure 14 illustrates improved portable optical touch-control system 500.
Figure 15 illustrates treatment circuit defined mouse function pattern in the touch area.
Figure 16 is arranged on synoptic diagram in the groove of electronic installation for portable optical touch-control system of the present invention.
Figure 17 is the basic procedure according to the method for the object sensing position of one embodiment of the invention.
100: optical touch system 102,502: object
104: panel 106,108,510,530: image sensing module
110,570: treatment circuit 112,114,116: reflection subassembly
118: touch area 202,204,902,904: sensing route
402,1012,1022: clear zone 404: dark space
500: portable optical touch-control system 5101,5301: housing
51011: first 51012: second portion
5101A: bottom surface 5102,5302: transmission region
512A: image capture face 302,518,538: infrared light emitter
304,516,536: optical mirror slip group 306,514,534: infrared light filtering apparatus
308,512,532: image sensor 582,584,586: dotted line
550: adjustable in length coupling arrangement 560: communication interface
590: touch area 802: the real work surface
1010,1020: image 1014,1016,1024,1026: edge
1602: electronic installation A, B, E, F: point
D: visual field H farthest: highly
L, M, R: region S 1702, S1704, S1706: step
5161,5162,520,5361,5362,540: optical mirror slip
1018,1028,1018A, 1018B, 1018C: the center of object, center of gravity or mean value
α, β, α 1, β 1, θ 1, θ 2, θ 3: angle
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, but the portable optical contactor control device of at least one object space of portable optical touch-control system sensing that foundation the present invention is proposed and its embodiment of method, structure, method (manufacture method, job operation), step, feature and the effect thereof of object sensing position, describe in detail as after.
First embodiment:
Fig. 5 is the schematic perspective view according to the portable optical touch-control system of one embodiment of the invention, and Fig. 6 also is the schematic perspective view of portable optical touch-control system shown in Figure 5, and Fig. 7 is the schematic diagram in top down perspective of portable optical touch-control system shown in Figure 5.Please earlier with reference to Fig. 5 and Fig. 7, above-mentioned portable optical touch-control system 500 includes image sensing module 510, image sensing module 530, adjustable in length coupling arrangement 550, communication interface 560 and treatment circuit 570.Image sensing module 510 has housing 5101, and above-mentioned housing 5101 has transmission region 5102.Image sensing module 530 has housing 5301, and above-mentioned housing 5301 has transmission region 5302.Two ends of adjustable in length coupling arrangement 550 connect housing 5101 and 5301 respectively, in order to adjust the distance between the image sensing module 510 and 530.
Adjustable in length coupling arrangement 550 can adopt the body of rod structure of the scalable length of multisection type or adopt rail structure to reach the function of adjustable in length, and right adjustable in length coupling arrangement 550 of the present invention does not limit the use of in above-mentioned two kinds of implementations.In addition, in this example, communication interface 560 is a wire communication interface, for example is USB (universal serial bus) (Universal Series Bus, USB) interface, but not as limit.And the specification of USB (universal serial bus) can be USB1.0, USB 1.1, USB 2.0 or USB 3.0.Please refer to Fig. 6, label is expressed as identical components with the identical person of label among Fig. 5.Fig. 6 mainly is that the length that illustrates adjustable in length coupling arrangement 550 can shorten to and makes image sensing module 510 and 530 situations that can touch mutually, carries to make things convenient for the user.
Please refer to Fig. 7, label is expressed as identical components with the identical person of label among Fig. 5, and label 502 is expressed as an object, for example user's finger or lip pencil thing.In this example, image sensing module 510 except having housing 5101, the optical mirror slip group 516, infrared light emitter 518 and the optical mirror slip 520 that also include image sensor 512, can only allow infrared light filtering apparatus 514 that infrared light passes through, be formed by optical mirror slip 5161 and 5162.Wherein, image sensor 512 can be Charged Coupled Device (charge-coupled device, CCD) or CMOS image sensing component (CMOSimage sensor).And the external form of image sensor 512 can be matrix form (Array) or linear forms (Linear).In addition, in this example, the visual angle of image sensor 512 is about 30～45 degree, therefore image sensing module 510 must adopt optical mirror slip group 516 to be increased in the visual angle of image sensor 512 to be at least 90 and to spend, so that the zone that the angle that makes the sensing range of image sensing module 510 be at least dotted line 582 and 584 is contained.And in optical mirror slip group 516, each optical mirror slip can increase visual angle at least 30 degree of image sensor 512.
As for infrared light emitter 518, the zone that its infrared light of launching can be contained through optical mirror slip 520 and the transmission region 5102 and the angle of irradiation dotted line 582 and 584 in regular turn, comprise object 502, make image sensor 512 can see through the image after infrared light filtering apparatus 514, optical mirror slip group 516 and transmission region 5102 are obtained object 502 reflects infrared light in regular turn.And this means, the image in the zone that the shape of transmission region 5102 and the angle that size must be designed to allow image sensor 512 sense dotted line 582 and 584 are contained, transmission region 5102 can not remove to stop the direct of travel of the infrared light that infrared light emitter 518 is launched through optical mirror slip 520 and make infrared light can't shine any position in the zone that above-mentioned angle contains simultaneously.
Similarly, image sensing module 530 except having housing 5301, the optical mirror slip group 536, infrared light emitter 538 and the optical mirror slip 540 that also include image sensor 532, can only allow infrared light filtering apparatus 534 that infrared light passes through, be formed by optical mirror slip 5361 and 5362.In this example, the visual angle of image sensor 532 is about 30～45 degree, therefore image sensing module 530 must adopt optical mirror slip group 536 to be increased in the visual angle of image sensor 532 to be at least 90 and to spend, so that the zone that the angle that makes the sensing range of image sensing module 530 be at least dotted line 582 and 586 is contained.And in optical mirror slip group 536, each optical mirror slip can increase visual angle at least 30 degree of image sensor 532.
As for infrared light emitter 538, the zone that its infrared light of launching can be contained through optical mirror slip 540 and the transmission region 5302 and the angle of irradiation dotted line 582 and 586 in regular turn, comprise object 502, make image sensor 532 can see through the image after infrared light filtering apparatus 534, optical mirror slip group 536 and transmission region 5302 are obtained object 502 reflects infrared light in regular turn.And this means, the image in the zone that the shape of transmission region 5302 and the angle that size must be designed to allow image sensor 532 sense dotted line 582 and 586 are contained, transmission region 5302 can not remove to stop the direct of travel of the infrared light that infrared light emitter 538 is launched through optical mirror slip 540 and make infrared light can't shine any position in the zone that above-mentioned angle contains simultaneously.
By above-mentioned description as can be known, dotted line 582 and 584 angle are about 90 degree, and the angle of dotted line 582 and 586 also is about 90 and spends.Therefore, image sensing module 510 and 530 sensing range are that part overlaps, and the zone that above-mentioned part overlaps is in order to define a touch area 590.In addition, by Fig. 7 and above-mentioned description also as can be known, image sensor 512 is arranged on dotted line 582 and 584 corners of intersecting, and image sensor 532 then is arranged on dotted line 582 and 586 crossing corners.That is to say that image sensor 512 and 532 is arranged on two different corners of touch area 590.
Fig. 8 is the side-looking perspective diagram of image sensing module 510.In Fig. 8, label is expressed as identical components with the identical person of label among Fig. 5, Fig. 7, and label 802 then is expressed as a real work surface.As shown in Figure 8, the image capture face 512A of image sensor 512 and the bottom surface 5101A of housing 5101 present predetermined angle theta 1, and above-mentioned predetermined angle theta 1 is 90 degree.In addition, infrared light filtering apparatus 514, optical mirror slip group 516, infrared light emitter 518 (this figure does not illustrate) also are provided with along with above-mentioned predetermined angle theta 1 with optical mirror slip 520 (this figure does not illustrate).Because above-mentioned predetermined angle theta 1 is 90 degree, so the visual field of image sensor 512 (field of view) be infinity in theory, promptly the depth of field of the image that image sensor 512 sensed is infinity in theory.Yet practical situation is decided on the physical restriction of environment and assembly itself.In addition, if the infrared luminous energy that infrared light emitter 518 is launched is contained the visual field of image sensor 512, then when object 502 enters into the range of exposures of infrared light, just can reflects infrared light allow image sensor 512 carry out sensing.
Similarly, the image sensor 532 in the image sensing module 530, infrared light filtering apparatus 534, optical mirror slip group 536, infrared light emitter 538 and optical mirror slip 540 also are provided with in mode shown in Figure 8.
Referring again to Fig. 7.In this example, treatment circuit 570 is arranged in the housing 5101 of image sensing module 510, and electric property coupling communication interface 560, image sensor 512 and image sensor 532.Therefore, when object 502 is positioned at touch area 590, image sensor 512 and 532 just can capture the image after object 502 reflects infrared light, and these image datas are directly passed to treatment circuit 570, or image sensor 512 and 532 also can carry out pre-process with image data and obtains the characteristic (area of object image for example of image, length breadth ratio, the border, color, parameters such as brightness) after, pass to treatment circuit 570 again, alleviating the burden of treatment circuit 570, and treatment circuit 570 just calculates the coordinate of object 502 according to the characteristic of these image datas or image.Treatment circuit 570 just can see through communication interface 560 and export described coordinate to an electronic installation after the coordinate of obtaining object 502, for example is to export a mobile computer to, so that above-mentioned electronic installation is further operated according to described coordinate.Below will the adquisitiones of object coordinates be described further again.
Fig. 9 carries out the key diagram of single-point touch for portable optical touch-control system shown in Figure 7.In Fig. 9, label is expressed as identical components with the identical person of label among Fig. 7.In addition, some A is expressed as the position that is provided with of image sensor 512, and some B is expressed as the position that is provided with of image sensor 532.As shown in Figure 9, when object 502 is positioned at touch area 590, image sensor 512 just can sense object 502 along sensing route 902, and image sensor 532 then energy senses object 502 along sensing route 904.Therefore, as long as treatment circuit 570 can be obtained the equation of line of sensing route 902,904 respectively respectively according to image sensor 512,532 images that sensed, just can further calculate the intersection point of these two sensing routes, and then obtain the coordinate of object 502.Below will further specify treatment circuit 570 and how obtain the equation of line of above-mentioned two sensing routes according to these two images that image sensor sensed.
Figure 10 is that treatment circuit 570 receives the image data of two image sensors 512 and 532 and the synoptic diagram of subsequent treatment.In Figure 10, label 1010 is expressed as the image that image sensor 512 is sensed, label 1012 is represented object 502 reflects infrared light and form the higher clear zone (bright zone) of brightness on image 1010, label 1014 and 1016 is represented the left hand edge and the right hand edge in clear zone 1012 respectively, and label 1018 is expressed as center (center), center of gravity (gravity) or the mean value (mean or average) in clear zone 1012 (being object image).Label 1014,1016 and 1018 is about the characteristic of object 502 in the image 1010.
Similarly, label 1020 is expressed as the image that image sensor 532 is sensed, label 1022 is represented object 502 reflects infrared light and form the higher clear zone of brightness on image 1020, label 1024 and 1026 is represented the left hand edge and the right hand edge in clear zone 1022 respectively, and label 1028 is expressed as center, center of gravity or the mean value of clear zone 1022 (being object image).Label 1024,1026 and 1028 is about the characteristic of object 502 in the image 1020.In addition, the further feature data of object 502, parameters such as the area of object image, length breadth ratio, border, color, brightness for example also can be handled or carry out pre-process by image sensor 512,532 by treatment circuit 570.And present embodiment is tried to achieve these characteristics by treatment circuit 570.
Object space in the image that Figure 11 senses for image sensor 512 and corresponding angle figure.Hold above-mentionedly, treatment circuit 570 can calculate center, center of gravity or the mean value in clear zone 1012 after receiving image 1010, and this is the position of object 502 in image 1010.Please refer to Fig. 9, Figure 10 and Figure 11,, image 1010 on average can be divided into some equal portions, for example 90 equal portions for trying to achieve the angle α 1 of dotted line 582 and sensing route 902.Each equal portions is represented angle 1 degree, so image 1010 right margins are angle 0 degree, and left margin is angle 90 degree.When center, center of gravity or the mean value of object drop in the image 1010, get final product the angle [alpha] 1 that correspondence goes out this position representative.For instance, it is 45 degree that 1018A represents angle [alpha] 1, and it is 30 degree that 1018B represents angle [alpha] 1, and it is 75 degree that 1018C represents angle [alpha] 1.If when not having the corresponding angle value of integer just, available interpolation method is calculated.And same procedure also can be tried to achieve angle beta 1.
Please refer to Fig. 9, utilize known A point coordinate value and angle [alpha] 1, can utilize a little oblique formula (point-slope form) to try to achieve the equation of line of sensing route 902; In like manner, also can utilize B point coordinate value and angle beta 1 to try to achieve the equation of line of sensing route 904.Therefore, treatment circuit 570 just can calculate the intersection point of these two sensing routes, and then tries to achieve the coordinate of object 502.This object coordinates computing method are exactly so-called two line method of intersection.In addition, portable optical touch-control system 500 also can adopt other method, and for example the trigonometric function method calculates the coordinate of object 502, because said method uses widely in existing optical touch system, just repeats no more at this.In addition, by above-mentioned teaching, this area has knows that usually the knowledgeable is when knowing that above-mentioned portable optical touch-control system 500 also can use at multi-point touch (multi touch).
In addition, in the visual field of image sensor 512 and 532 except object to be measured 502, also may there be other object in the visual field at a distance, and these objects also can reflected infrared and interfere with the touch control operation of optical touch system 500, therefore can utilize the brightness of the light that object reflects to screen.(but not as limit) for instance, treatment circuit 570 a predeterminable brightness threshold value or brightness ranges, and the brightness value of each pixel (pixel) in image sensor 512 and 532 picked image detected screening.If the brightness value of a pixel surpasses default brightness threshold value or drops in the default brightness range, then the brightness value of above-mentioned pixel meets preset standard.Mode is screened the brightness value of each pixel in the image in regular turn according to this, but other object beyond the filtering object under test 502 then.
What deserves to be mentioned is that in practical design, aforesaid infrared light emitter 518 and 538 all can adopt at least one infrared light light emitting diode (IR LED) to realize; And aforesaid infrared light filtering apparatus 514 and 534 all can adopt an infrared light optical filter (IR-pass filter) to realize.The infrared light wavelength that the infrared light light emitting diode is sent is about 800nm～960nm, and generally being to use infrared light wavelength is the infrared light light emitting diode of 850nm.In addition, because the visual angle of general image sensor is 30～45 degree, so the optical mirror slip number in optical mirror slip group 516 and 536 is worked as the visual angle of visible image sensor and visual angle that each optical mirror slip can increase and is done suitable design.Although and in this example, treatment circuit 570 is arranged in the housing 5101 of image sensing module 510, and communication interface 560 is arranged on the housing 5101 of image sensing module 510, right this only is in order to illustrate, and is not in order to the allocation position of restriction treatment circuit 570 with communication interface 560.In addition, the surface of aforesaid object 502 also can additionally adopt reflective material to improve reflecting effect.
In addition, communication interface 560 is wireless communication interface also, for example be blue bud (BlueTooth) wireless transmission interface, radio universal serial bus (Wireless Universal Series Bus, Wireless USB) interface or ultra broadband (Ultra Wide Band, UWB) wave point.Even communication interface 560 can adopt multiple wire communication interface and multiple wireless telecommunications interface.
By above-mentioned explanation, the scope of aforementioned as can be known touch area 590 can reach infinity in theory.Yet the size of touch area 590 still can limit by the mode of software.Referring again to Fig. 9, in touch area 590, the length on the limit that is formed by dotted line 582 is known, and all is endless in theory by the length on dotted line 584 and 586 formed two limits.For making the length by dotted line 584 and 586 formed two limits is predetermined length, and treatment circuit 570 can be according to the different touch-control scope of different application occasion definition.For instance, when this optical touch system 500 is used as a virtual mouse, stool and urine in the touch area 590 in image sensing module 510 and 530 the place aheads can be defined according to the use habit scope of user's application entity mouse so, for example is the touch-control scope that is defined as 15cm * 15cm (being dotted line 582 length * dotted line 584 length) size.Perhaps, treatment circuit 570 can define the predetermined length of dotted line 584 and 586 in real time by the relation of the size of object image and distance, also can define above-mentioned predetermined length by the catoptrical brightness of object image, or define the predetermined length of dotted line 584 and 586 in real time, and build in the mode with definition in the middle of the software or firmware that treatment circuit 570 adopted in conjunction with these two kinds of modes.Thus, touch area 590 just can present a quadrilateral touch-control scope with predetermined area size.
Hold above-mentionedly, have in touch area 590 under the situation of predetermined area size, treatment circuit 570 can calculate the coordinate of object 502 earlier, and then whether judgment object 502 is positioned at touch area 590.When object 502 was positioned at touch area 590, treatment circuit 570 just can see through the coordinate of communication interface 560 output objects 502.Certainly, treatment circuit 570 also can be the coordinate that calculates object 502 earlier, and see through communication interface 560 and export the coordinate of object 502 to aforesaid electronic installation, with allow above-mentioned electronic installation voluntarily judgment object 502 whether be positioned at touch area 590, and then whether decision is used.
Second embodiment:
This example can be the restriction that utilizes hardware at explanation portable optical touch-control system 500 mainly, makes the visual field of image sensor 512 and 532 to change into limited distance by infinity, and one as shown in figure 12.
Figure 12 illustrates another set-up mode of the internals of image sensing module 510.In Figure 12, label is expressed as identical components with the identical person of label among Fig. 5.As shown in figure 12, the image capture face 512A of image sensor 512 and the bottom surface 5101A of housing 5101 present predetermined angle theta 3, and above-mentioned predetermined angle theta 3 is less than 90 degree.In addition, infrared light filtering apparatus 514, optical mirror slip group 516, infrared light emitter 518 (this figure does not illustrate) also are provided with along with above-mentioned predetermined angle theta 3 with optical mirror slip 520 (this figure does not illustrate).Wherein, infrared light emitter 518 must make the direct of travel of infrared light can be roughly parallel to real work table plane 802 with the set-up mode of optical mirror slip 520.Because above-mentioned predetermined angle theta 3 is less than 90 degree, so the visual field of image sensor 512 is a limited distance.That is to say that the depth of field of the image that image sensor 512 is sensed is limited distance.
Similarly, the image sensor 532 in the image sensing module 530, infrared light filtering apparatus 534, optical mirror slip group 536, infrared light emitter 538 and optical mirror slip 540 also are provided with in mode shown in Figure 12.
Referring again to Fig. 9, because limited distance is changed into by infinity in the visual field of image sensor 512 and 532, therefore as can be known in touch area 590, be to define according to image sensor 512 and 532 visuals field farthest that can sense by the length on dotted line 584 and 586 formed two limits.And the visual field farthest that image sensor can sense can be calculated with reference to mode shown in Figure 13.In Figure 13, D is expressed as the visual field farthest (being the length of dotted line 584 or 586) that image sensor 512 can sense, and H is expressed as the height of image sensor 512, and θ 2 is expressed as angle.Relation between D, H, the θ 2 is represented by the formula D=H/tan among the figure (θ 2), and θ 3 (seeing Figure 12) adds that θ 2 is angle 90 degree.For instance, H is 5mm, and θ 2 is angle 1.91 degree, and then D then is H/tan (θ 2) through this formula calculating, is about 150mm.
The 3rd embodiment:
This example mainly in the mode of explanation with another hardware constraints, makes the image sensor 512 of portable optical touch-control system 500 and 532 the visual field to change into limited distance by infinity, as shown in figure 14.
Figure 14 illustrates improved portable optical touch-control system 500.In Figure 14, label is expressed as identical components with the identical person of label among Fig. 5.And in optical touch system 500 shown in Figure 14, the volume of the housing 5101 of image sensing module 510 is increased, and above-mentioned housing 5101 has first 51011 and second portion 51012.Communication interface 560 is arranged on first 51011, and image sensor 512, infrared light filtering apparatus 514, optical mirror slip group 516, infrared light emitter 518, optical mirror slip 520, treatment circuit 570 and transmission region 5102 all are arranged on second portion 51012.Above-mentioned second portion 51012 is in order to connection adjustable in length coupling arrangement 550, and above-mentioned second portion 51012 can rotate with respect to first 51011.
Because adjustable in length coupling arrangement 550 connects above-mentioned second portion 51012, and the housing 5301 of image sensing module 530 connects adjustable in length coupling arrangement 550, therefore when second portion 51012 rotated with respect to first 51011, adjustable in length coupling arrangement 550 also can rotate identical angle with image sensing module 530.Thus, when above-mentioned portable optical touch-control system 500 was placed or is adjacent on the real work surface, limited distance just can be changed into by infinity along the anglec of rotation in the image sensor 512 and 532 the visual field.
The 4th embodiment:
Teaching by first embodiment, as can be known as long as the volume of the adjustable in length coupling arrangement 550 of portable optical touch-control system 500 is enough big, image sensing module 510 just can not adopt housing 5101, and image sensor 512, infrared light filtering apparatus 514, optical mirror slip group 516, infrared light emitter 518 and optical mirror slip 520 can be arranged on a wherein end of adjustable in length coupling arrangement 550.In like manner, image sensing module 530 need not adopt housing 5301 yet, and image sensor 532, infrared light filtering apparatus 534, optical mirror slip group 536, infrared light emitter 538 and optical mirror slip 540 can be arranged on the other end of adjustable in length coupling arrangement 550.Certainly, image sensor 512 and 532 sensing range still need partly to overlap, and the zone that makes above-mentioned part overlap can be used to define a touch area.Can be provided with arbitrarily as for communication interface 560 and 570 of treatment circuits, only need make treatment circuit 570 still electrically connect communication interface 560, image sensor 512 and image sensor 532 and get final product.
What deserves to be mentioned is that in this example, the image sensor 512 and 532 the visual field also are infinity in theory.
The 5th embodiment:
Teaching by the 4th embodiment and second embodiment, as can be known in the described portable optical touch-control system 500 of the 4th embodiment, image sensor 512 and 532 can be designed to and can rotate a predetermined angular with respect to the axle center of adjustable in length coupling arrangement 550, and above-mentioned predetermined angular is less than 90 degree.Certainly, infrared light filtering apparatus 514, optical mirror slip group 516, infrared light emitter 518 also must be done corresponding suitable adjustment along with the anglec of rotation of image sensor 512 with optical mirror slip 520; Infrared light filtering apparatus 534, optical mirror slip group 536, infrared light emitter 538 then must be done corresponding suitable adjustment along with the anglec of rotation of image sensor 532 with optical mirror slip 540.Thus, when above-mentioned portable optical touch-control system 500 was placed on the real work surface, limited distance just can be changed into by infinity along sense of rotation in the image sensor 512 and 532 the visual field.
The 6th embodiment:
This embodiment mainly is that explanation is in the portable optical touch-control system that has adopted the infrared light emitter, at least one optical mirror slip in each optical mirror slip group can the interlock magnesium oxide (MgO) that is coated with multilayer and the titania (TiO2) or the silicon dioxide (SiO2) of multilayer are so that at least one optical mirror slip produces the effect that is similar to the infrared light filtering apparatus.Thus, original infrared light filtering apparatus just can be omitted.
What deserves to be mentioned is that original infrared light filtering apparatus is exactly so-called photoresistance (PhotoResistor), its composition has comprised organic compound, macromolecule (Polymer) and plastics (Plastic).
The 7th embodiment:
This embodiment mainly be explanation in the portable optical touch-control system that has adopted the infrared light emitter, each infrared light emitter can a laser light emitter replaces, and each infrared light filtering apparatus all can be omitted.In addition, each optical mirror slip in each optical mirror slip group need not be coated with magnesium oxide (MgO), titania (TiO2) and silicon dioxide (SiO2) yet.So should be noted that, each is arranged on the pointolite that the optical mirror slip before the laser light emitter must be sent the laser light emitter of correspondence and converts line source to, covers the touch area so that the laser luminous energy that the laser light emitter of correspondence is sent contains at least.Thus, the laser light that each laser light emitter is sent just can shine the object that is positioned at the touch area, and each image sensor also can be obtained the image of above-mentioned object reflection laser light.
What deserves to be mentioned is that each laser light emitter all can adopt at least one laser light light emitting diode (laser diode) to realize.
The 8th embodiment:
This embodiment illustrates that all available non-telescoping coupling arrangement of each adjustable in length coupling arrangement replaces in the portable optical touch-control system that has adopted the adjustable in length coupling arrangement.
The 9th embodiment:
This embodiment mainly is that explanation is in portable optical touch-control system of the present invention, treatment circuit can be designed to further definition one pattern in the touch area, so that utilize the virtual user's input interface of above-mentioned pattern, and above-mentioned user's input interface can be a mouse, a keyboard, a Trackpad (Touch Pad) or a switching switch.With the described portable optical touch-control system of second embodiment is example, and its treatment circuit can be designed to the further pattern of definition one mouse function in the touch area, illustrates with Figure 15.
Figure 15 illustrates above-mentioned treatment circuit defined mouse function pattern in the touch area.In Figure 15, link to each other in regular turn and the parallelogram zone that forms is exactly described touch area 590 by an A, some B, some E and some F.Wherein, some A and some B are expressed as the position that is provided with of two image sensors in the portable optical touch-control system.In addition, area L is virtual to be the left button function of mouse, and regional M is virtual to be the roller function of mouse, and region R is then virtual to be the right button function of mouse.Thus, the user just can utilize above-mentioned touch area 590 virtual mouse function operate.
The tenth embodiment:
This embodiment mainly is that explanation is in the described portable optical touch-control system of the 9th embodiment, can set up a light emitting devices again, so that utilize above-mentioned light emitting devices on pairing real work surface, touch area, to project the defined pattern of treatment circuit, for example project mouse function pattern, keypad function pattern or the like.The light source of above-mentioned light emitting devices can be visible laser light source or visible infrared light supply.
The 11 embodiment:
First embodiment points out treatment circuit after obtaining the coordinate of object, just can see through communication interface and export described coordinate to an electronic installation.And if this embodiment illustrates that above-mentioned electronic installation has display screen, it for example is a mobile computer, treatment circuit in the portable optical touch-control system so of the present invention more can be designed to see through communication interface and above-mentioned electronic installation carries out communication, so that utilize the cursor position of the display screen of above-mentioned electronic installation to react the coordinate of (Mapping) object.
The 12 embodiment:
This embodiment illustrates that on the housing of the described electronic installation of the 11 embodiment also can be provided with a groove, so that portable optical touch-control system of the present invention can be arranged in the above-mentioned groove, one as shown in figure 16.Figure 16 is arranged on synoptic diagram in the groove of electronic installation for portable optical touch-control system of the present invention.And the electronic installation 1602 shown in this figure is an example with the mobile computer.
The 13 embodiment:
By the teaching of the 12 embodiment, if the portable electron device itself that has display screen as can be known has portable optical touch-control system of the present invention in just, so above-mentioned electronic installation also can claim is the portable optical contactor control device.Certainly, in built-in portable optical touch-control system, just do not need to use adjustable in length coupling arrangement or non-telescoping coupling arrangement.In addition, built-in portable optical touch-control system can adopt infrared light emitter or laser light emitter to shine the object that is positioned at the touch area.
The 14 embodiment:
Teaching by aforementioned each embodiment, if object to be measured as can be known itself can be luminous, for example can send infrared light or laser light, so aforesaid each portable optical touch-control system just need not adopt infrared light emitter or laser light emitter to come irradiating object.Certainly, being arranged on infrared light emitter or laser light emitter preceding optical mirror slip and other associated component originally also can omit.
Each embodiment of the portable optical touch-control system of the above-mentioned employing adjustable in length of integration coupling arrangement, the basic procedure that can summarize the method for a kind of object sensing position, one as shown in figure 17.Figure 17 is the basic procedure according to the method for the object sensing position of one embodiment of the invention.Described method is applicable to a portable optical touch-control system, and above-mentioned portable optical touch-control system includes first image sensing module, second image sensing module, adjustable in length coupling arrangement, treatment circuit and communication interface.Wherein, the sensing range of above-mentioned two image sensing modules is partly to overlap, and the zone that above-mentioned part overlaps is used for defining a touch area.The adjustable in length coupling arrangement connects first image sensing module and second image sensing module, in order to adjust the distance between first image sensing module and second image sensing module.Said method includes: the image (shown in step S1702) that is positioned at the object of touch area by above-mentioned two image sensing modules acquisition; Calculate the coordinate (shown in step S1704) of object according to the image of above-mentioned two objects that image sensing module captured by treatment circuit; And the coordinate (shown in step S1706) of exporting object by communication interface.Wherein, described treatment circuit can utilize trigonometric function method or two line method of intersection to calculate the coordinate of above-mentioned object.
Explanation by the various embodiments described above, portable optical touch-control system of the present invention as can be known can replace user's input interfaces such as present mouse, keyboard, Trackpad, and portable optical touch-control system of the present invention have volume little, easy to carry, can put everywhere, advantage cheaply.In addition, portable optical touch-control system of the present invention can be subject to working surface unlike present mouse and need smooth restriction, also needs the restriction of an entity touch area unlike resistance or capacitive touch control plate.And by the explanation of the various embodiments described above, portable optical touch-control system also of the present invention as can be known can combine with the electronic installation with display screen or link up, and the action of the cursor in the may command display screen, even can realize present all attainable functions of Touch Screen on the market, as single-point touch, multi-point touch etc.What deserves to be mentioned is, utilize the technology of optical mode detecting object to can be described as optical coupled (OpticalCoupling) technology, the i.e. light signal that is reflected by at least one image sensor object sensing, again above-mentioned smooth signal is converted to electric signal, at last the electric signal that these image sensors calculated is carried out correlativity (correlation) and handle, in the hope of the characteristic information of object.
In sum, the present invention adopts two image sensing modules and a treatment circuit to make up a portable optical touch-control system.In practical design, be that the sensing range of two image sensing modules is partly overlapped, the zone that makes above-mentioned part overlap can be used to define a touch area.Thus, be positioned at the touch area as an object (for example finger or lip pencil thing), treatment circuit just can calculate the coordinate of object according to the image of these two objects that image sensing module sensed.And in further designing, can make two image sensing modules emission infrared lights or laser light with irradiating object, and obtain the image of object reflects infrared light or laser light by this, allow treatment circuit can calculate the coordinate of object according to such image.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the method that can utilize above-mentioned announcement and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (21)
1. portable optical touch-control system is characterized in that comprising:
One first image sensing module;
One second image sensing module, wherein the sensing range of this first image sensing module and this second image sensing module partly overlaps, and the zone that above-mentioned part overlaps is in order to define a touch area;
One adjustable in length coupling arrangement connects this first image sensing module and this second image sensing module, in order to adjust the distance between this first image sensing module and this second image sensing module;
One communication interface; And
One treatment circuit, be positioned at this touch area as an object, the image of this object that this treatment circuit is just sensed according to this first image sensing module and this second image sensing module calculates the coordinate of this object, and sees through this communication interface and export described coordinate.
2. portable optical touch-control system according to claim 1, it is characterized in that this first image sensing module includes one first housing and one first image sensor, this second image sensing module then includes one second housing and one second image sensor, this first image sensor and this second image sensor are separately positioned in this first housing and this second housing, and this treatment circuit of electric property coupling all, this first housing and this second housing are in order to be connected this adjustable in length coupling arrangement, and have one first transmission region and one second transmission region respectively, make this first image sensor and this second image sensor can see through this first transmission region and this second transmission region sensing image respectively, and make the sensing range of this first image sensor and this second image device partly to overlap, the image capture face of this first image sensor and the bottom surface of this first housing present a predetermined angular, the image capture face of this second image sensor and the bottom surface of this second housing also present this predetermined angular, and this predetermined angular is 90 degree, this touch area be shaped as a quadrilateral, this quadrilateral has one first limit that connects in regular turn, one second limit, one the 3rd limit and one the 4th limit, the corner that intersect on this first limit and the 4th limit is the position that is provided with of this first image sensor, the corner that intersect on this first limit and this second limit is the position that is provided with of this second image sensor, and the length on this second limit and the 4th limit is a predetermined length.
3. portable optical touch-control system according to claim 1, it is characterized in that this first image sensing module includes one first housing and one first image sensor, this second image sensing module then includes one second housing and one second image sensor, this first image sensor and this second image sensor are separately positioned in this first housing and this second housing, and this treatment circuit of electric property coupling all, this first housing and this second housing are in order to be connected this adjustable in length coupling arrangement, and have one first transmission region and one second transmission region respectively, make this first image sensor and this second image sensor can see through this first transmission region and this second transmission region sensing image respectively, and make the sensing range of this first image sensor and this second image device partly to overlap, the image capture face of this first image sensor and the bottom surface of this first housing present a predetermined angular, the image capture face of this second image sensor and the bottom surface of this second housing also present this predetermined angular, and this predetermined angular is less than 90 degree, this touch area be shaped as a quadrilateral, this quadrilateral has one first limit that connects in regular turn, one second limit, one the 3rd limit and one the 4th limit, the corner that intersect on this first limit and the 4th limit is the position that is provided with of this first image sensor, the corner that intersect on this first limit and this second limit is the position that is provided with of this second image sensor, and the length on this second limit and the 4th limit is to define according to the visual field farthest that this first image sensor and this second image sensor can sense.
4. according to claim 2 or 3 described portable optical touch-control systems, it is characterized in that this first housing has a first and a second portion, this communication interface is arranged on this first, and this first image sensor and this first transmission region are arranged on this second portion, this second portion is in order to connecting this adjustable in length coupling arrangement, and this second portion can rotate with respect to this first.
5. according to claim 2 or 3 described portable optical touch-control systems, it is characterized in that the infrared light filtering apparatus that this each image sensing module more includes an infrared light emitter and can only allow infrared light pass through, this each infrared light emitter shines this object in order to the emission infrared light, and this each image sensor is that this infrared light filtering apparatus that sees through its correspondence is obtained the image that this object reflects this infrared light.
6. according to claim 2 or 3 described portable optical touch-control systems, it is characterized in that this each image sensing module more includes an infrared light emitter and an optical mirror slip group, this each infrared light emitter shines this object in order to the emission infrared light, the staggered magnesium oxide of multilayer and the titania or the silicon dioxide of multilayer of being coated with of at least one optical mirror slip in this each optical mirror slip group, and this each image sensor is that this optical mirror slip group that sees through its correspondence obtains the image that this object reflects this infrared light, and this each optical mirror slip group is used for making the visual angle of pairing this image sensor to present at least 90 degree.
7. according to claim 2 or 3 described portable optical touch-control systems, it is characterized in that this each image sensing module more includes a laser light emitter and an optical mirror slip, this each laser light emitter is converted to a line laser light in order to this optical mirror slip of launching some laser light and seeing through its correspondence and is positioned at this object of this touch area with irradiation, and this each image sensor is in order to obtain the image that this object reflects this line laser light.
8. portable optical touch-control system according to claim 1, it is characterized in that this first image sensing module includes one first image sensor, and this second image sensing module includes one second image sensor, this first image sensor and this second image sensor are connected two ends of this adjustable in length coupling arrangement respectively, and this treatment circuit of electric property coupling all, this touch area be shaped as a quadrilateral, this quadrilateral has one first limit that connects in regular turn, one second limit, one the 3rd limit and one the 4th limit, the corner that intersect on this first limit and the 4th limit is the position that is provided with of this first image sensor, the corner that intersect on this first limit and this second limit is the position that is provided with of this second image sensor, and the length on this second limit and the 4th limit is a predetermined length.
9. portable optical touch-control system according to claim 1, it is characterized in that this first image sensing module includes one first image sensor, and this second image sensing module includes one second image sensor, this first image sensor and this second image sensor are connected two ends of this adjustable in length coupling arrangement respectively, and this treatment circuit of electric property coupling all, this first image sensor can be with respect to the axle center of this adjustable in length coupling arrangement and is rotated a predetermined angular, this second image sensor also can be with respect to the axle center of this adjustable in length coupling arrangement and is rotated this predetermined angular, and this predetermined angular is less than 90 degree, this touch area be shaped as a quadrilateral, this quadrilateral has one first limit that connects in regular turn, one second limit, one the 3rd limit and one the 4th limit, the corner that intersect on this first limit and the 4th limit is the position that is provided with of this first image sensor, the corner that intersect on this first limit and this second limit is the position that is provided with of this second image sensor, and the length on this second limit and the 4th limit is to define according to the visual field farthest that this first image sensor and this second image sensor can sense.
10. according to Claim 8 or 9 described portable optical touch-control systems, it is characterized in that the infrared light filtering apparatus that this each image sensing module more includes an infrared light emitter and can only allow infrared light pass through, shining this object, and this each image sensor is that this infrared light filtering apparatus that sees through its correspondence is obtained the image that this object reflects this infrared light to this each infrared light emitter in order to the emission infrared light.
11. according to Claim 8 or 9 described portable optical touch-control systems, it is characterized in that this each image sensing module more includes an infrared light emitter and an optical mirror slip group, this each infrared light emitter is in order to launch infrared light to shine this object, the staggered magnesium oxide of multilayer and the titania or the silicon dioxide of multilayer of being coated with of at least one optical mirror slip in this each optical mirror slip group, and this each image sensor is that this optical mirror slip group that sees through its correspondence obtains the image that this object reflects this infrared light, and this each optical mirror slip group is used for making the visual angle of pairing this image sensor to present at least 90 degree.
12. according to Claim 8 or 9 described portable optical touch-control systems, it is characterized in that this each image sensing module more includes a laser light emitter and an optical mirror slip, this each laser light emitter is converted to a line laser light in order to this optical mirror slip of launching some laser light and seeing through its correspondence and is positioned at this object of this touch area with irradiation, and this each image sensor is in order to obtain the image that this object reflects this line laser light.
13. portable optical touch-control system according to claim 1, it is characterized in that this communication interface comprise wired communication interface and wireless telecommunications interface at least one of them, described wire communication interface comprises with USB (universal serial bus) to be realized, and described wireless telecommunications interface comprises with blue bud wireless transmission interface and realizing.
14. portable optical touch-control system according to claim 1, it is characterized in that further definition one pattern in this touch area of this treatment circuit, so that utilize the virtual user's input interface of this pattern, this user's input interface comprises it being a mouse, a keyboard, a Trackpad or a switching switch.
15. portable optical touch-control system according to claim 1, it is characterized in that this communication interface exports described coordinate to an electronic installation, this electronic installation has a display screen, and this treatment circuit can see through this communication interface and this electronic installation carries out communication, so that utilize a cursor position of this display screen to reflect the coordinate of this object.
16. portable optical touch-control system according to claim 1, it more comprises a light emitting devices, this light emitting devices is in order to project a pattern on a pairing real work surface, this touch area, make this treatment circuit can further in this touch area, define this pattern, so that utilize the virtual user's input interface of this pattern, and this user's input interface comprises it being a mouse, a keyboard, a Trackpad or a switching switch.
17. portable optical touch-control system according to claim 1 is characterized in that this treatment circuit utilizes trigonometric function method or two line method of intersection to calculate the coordinate of this object.
18. a portable optical touch-control system is characterized in that comprising:
One first image sensing module;
One second image sensing module, wherein the sensing range of this first image sensing module and this second image sensing module is partly to overlap, and the zone that above-mentioned part overlaps is in order to define a touch area;
One coupling arrangement connects this first image sensing module and this second image sensing module, and wherein the distance between this first image sensing module and this second image sensing module is a predetermined length;
One communication interface; And
One treatment circuit, be positioned at this touch area as an object, the image of this object that this treatment circuit is just sensed according to this first image sensing module and this second image sensing module calculates the coordinate of this object, and sees through this communication interface and export described coordinate.
19. but the portable optical contactor control device of an at least one object space of sensing is characterized in that comprising:
One first image sensing module comprises:
One first image sensor, one first infrared light emitter, one first infrared light filtering apparatus and one first optical mirror slip group;
One second image sensing module comprises:
One second image sensor, one second infrared light emitter, one second infrared light filtering apparatus and one second optical mirror slip group;
Wherein, the sensing range of this first image sensing module and this second image sensing module is partly to overlap, and the zone that this part overlaps is in order to define a touch area; This first infrared light emitter and this second infrared light emitter are positioned at an object of this touch area with irradiation in order to the emission infrared light; This first image sensing module and this second image sensing module see through this first infrared light filtering apparatus and this second infrared light filtering apparatus respectively and obtain the image that this object reflects this infrared light respectively; This first optical mirror slip group and this second optical mirror slip group are arranged on this first image sensor and this second image sensor the place ahead respectively, are used for making the visual angle of pairing this image sensor to present at least 90 degree;
One treatment circuit, the image of this object that is sensed according to this first image sensing module and this second image sensing module calculates and exports the coordinate of this object; And
One display screen is in order to show and to react this object coordinates that this treatment circuit is exported.
20. but the portable optical contactor control device of an at least one object space of sensing is characterized in that comprising:
One first image sensing module comprises:
One first image sensor, one first optical mirror slip group, one first laser light emitter and one first optical mirror slip;
One second image sensing module comprises:
One second image sensor, one second optical mirror slip group, one second laser light emitter and one second optical mirror slip;
Wherein, the sensing range of this first image sensing module and this second image sensing module is partly to overlap, and the zone that this part overlaps is in order to define a touch area; This first laser light emitter and this second laser light emitter are converted to a line laser light to shine an object that is positioned at this touch area respectively in order to launch some laser light and to see through this first optical mirror slip and this second optical mirror slip respectively respectively; This first image sensor and this second image sensor are obtained the image that this object reflects this line laser light in order to see through this first optical mirror slip group and this second optical mirror slip group respectively; This first optical mirror slip group and this second optical mirror slip group are used for making the visual angle of pairing this image sensor to present at least 90 degree respectively;
One treatment circuit, the image of this object that is sensed according to this first image sensing module and this second image sensing module calculates and exports the coordinate of this object; And
One display screen is in order to show and to react this object coordinates that this treatment circuit is exported.
21. the method for an object sensing position, be applicable to a portable optical touch-control system, this portable optical touch-control system includes one first image sensing module, one second image sensing module, one adjustable in length coupling arrangement, one treatment circuit and a communication interface, wherein the sensing range of this first image sensing module and this second image sensing module is partly to overlap, and the zone that above-mentioned part overlaps is used for defining a touch area, this adjustable in length coupling arrangement connects this first image sensing module and this second image sensing module, in order to adjust the distance between this first image sensing module and this second image sensing module, it is characterized in that this method comprises:
Be positioned at the image of an object of this touch area by the acquisition of this first image sensing module and this second image sensing module;
The image of this object that is captured according to this first image sensing module and this second image sensing module by this treatment circuit calculates the coordinate of this object; And
Export the coordinate of this object by this communication interface.
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| CN2010102190017A CN102298469A (en) | 2010-06-25 | 2010-06-25 | Portable optical touch system and method for sensing object position |
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| CN2010102190017A CN102298469A (en) | 2010-06-25 | 2010-06-25 | Portable optical touch system and method for sensing object position |
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| CN201410379465.2A Division CN104252271A (en) | 2010-06-25 | 2010-06-25 | Portable optical touch system |
| CN201410379237.5A Division CN104252270A (en) | 2010-06-25 | 2010-06-25 | Electronic equipment |
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