CN103941872A - Interactive projection device and method for achieving writing with two pens and writing with two pens approaching to each other infinitely - Google Patents
Interactive projection device and method for achieving writing with two pens and writing with two pens approaching to each other infinitely Download PDFInfo
- Publication number
- CN103941872A CN103941872A CN201410171764.7A CN201410171764A CN103941872A CN 103941872 A CN103941872 A CN 103941872A CN 201410171764 A CN201410171764 A CN 201410171764A CN 103941872 A CN103941872 A CN 103941872A
- Authority
- CN
- China
- Prior art keywords
- infrared light
- electroprobe
- infrared
- light electroprobe
- writing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Position Input By Displaying (AREA)
Abstract
The invention provides an interactive projection device for achieving writing with two pens and writing with the two pens approaching to each other infinitely. The interactive projection device comprises at least two photoelectric pens, namely the first infrared photoelectric pen and the second infrared photoelectric pen, a PC, a projector and an interactive projection module. The PC is connected with the projector and the interactive projection module. The interactive projection module captures writing obtained through the first infrared photoelectric pen and the second infrared photoelectric pen and conducts distinguishing operation on infrared rays emitted by the first infrared photoelectric pen and infrared rays emitted by the second infrared photoelectric pen. The interactive projection module processes captured images into coordinate values of the first infrared photoelectric pen and the second infrared photoelectric pen on a projection surface, and transmits the coordinate values to the PC. The invention further provides a method for achieving writing with the two pens and writing with the two pens approaching to each other infinitely. By means of the interactive projection device and method, when a user uses at least two infrared photoelectric pens to write on a board, completely independent functional operation can be conducted; moreover, even when the two pens approach to each other infinitely till coincide completely for writing, erroneous actions such as jumping and stringing of the pens can not happen.
Description
Technical field
The present invention relates to a kind of optical image interaction technical field, relate in particular to and a kind ofly realize two and write interactive projection device and the method for writing with two infinite approachs.
Background technology
The principle that realizes of the electric whiteboard system of optical image technology is that the light pen position of sensitive chip is followed the tracks of, its principle of work is: adopt light pen to write the infrared light spot that operation produces, while cam device real-time image acquisition, by signal, process real-time analysis picture signal and extract the positional information of luminous point, and by interface circuit, the positional information obtaining is input to computing machine, with algorithm, the coordinate position of the light pen physical location on projecting plane and computer output picture is corresponding, realize the interaction with computer cursor.
But the optical imaging apparatus on market all only supports one-pen to write substantially, occur now supporting many devices of writing, but (" false many " concept is that all pens cannot carry out complete independent operation while writing simultaneously to be simultaneously all false many, define different colors for example can not to every pen, it can only be a kind of color, when same picture is write, every pen cannot complete independently different operating), but actual user often need to use different pens to carry out completely independently feature operation in writing process, so the product on market cannot meet user's user demand.
And the optical imaging apparatus on market, occur now supporting many devices of writing, but if two infrared light pens are when writing, because infrared light pen only sends a kind of infrared ray, the Infrared that light pen sends when close there will be stack, cause the camera lens cannot right area bifurcation pen and the position at a place, there will be and jump a phenomenon (cursor of one-pen is jumped toward another one-pen, cannot normally use).
Summary of the invention
One of the technical problem to be solved in the present invention, is to provide a kind of and realizes two and write the interactive projection device of writing with two infinite approachs, and this device writes for realizing two the basis that the interaction of writing with two infinite approachs provides hardware.
One of problem of the present invention is achieved in that and a kind ofly realizes two and write the interactive projection device of writing with two infinite approachs, and described device comprises at least two infrared light electroprobes one and infrared light electroprobe two, PC, projector and interaction module; Described infrared light electroprobe one, infrared light electroprobe two are positioned on the projecting plane of electronic whiteboard, and infrared light electroprobe one sends the infrared ray of the first wavelength, and described infrared light electroprobe two sends the infrared ray of second wave length, and the first wavelength and second wave length are not identical; Described PC is connected with interaction module with projector respectively, described interaction module is caught infrared light electroprobe one, writing of infrared light electroprobe two, and the infrared ray that infrared light electroprobe one, infrared light electroprobe two are sent is distinguished operation, interaction module is treated to infrared light electroprobe one, the coordinate figure of infrared light electroprobe two on projecting plane to the image of catching, and coordinate figure is transferred to PC.
Further, described PC can be built in the independently PC of putting in or beyond projector.
Further, described interaction module comprises a pcb board, on described pcb board, be arranged side by side two and filtered projecting subassembly, described two filtration projecting subassemblies include a lens mount, in described lens mount, be disposed with camera lens, optical filter and sensitive chip, described sensitive chip is placed on pcb board, described two optical filters that filter projecting subassemblies respectively can saturating the first wavelength and the infrared ray of second wave length, and two sensitive chips that filter projecting subassemblies can only receive respectively the first wavelength that corresponding optical filter sees through and the infrared ray of second wave length; Described pcb board is connected with described PC.
Two of the technical problem to be solved in the present invention, being to provide a kind of realizes two and writes the interaction method of writing with two infinite approachs, realized user uses at least two infrared light electroprobes to write while operating on plate face, can carry out completely independently feature operation, and two pens can infinite approach until overlap while writing completely, also there will not be misoperations such as jumping a string pen.
Two of problem of the present invention is achieved in that and a kind ofly realizes two and write the interaction method of writing with two infinite approachs, it is characterized in that: described interaction method need provide at least two infrared light electroprobes one and infrared light electroprobe two, PC, projector and interaction module;
Described method is specially: when described infrared light electroprobe one and infrared light electroprobe two keep a distance to write, infrared light electroprobe one sends the infrared ray of the first wavelength, and infrared light electroprobe two sends the infrared ray of second wave length, and the first wavelength and second wave length are not identical; Described PC through projector by image projection on the projecting plane of electronic whiteboard, described interaction module is caught infrared light electroprobe one, writing of infrared light electroprobe two, and the infrared ray that infrared light electroprobe one, infrared light electroprobe two are sent is distinguished operation, interaction module is treated to infrared light electroprobe one, the coordinate figure of infrared light electroprobe two on projecting plane to the image of catching, and coordinate figure is transferred to PC; Or described infrared light electroprobe one and infrared light electroprobe two infinite approachs are when write, infrared light electroprobe one and infrared light electroprobe two produce the infrared light of reflection between the two, described interaction module is caught infrared light electroprobe one, writing of infrared light electroprobe two, and the infrared ray that infrared light electroprobe one, infrared light electroprobe two are sent is distinguished operation, to there is the infrared light of reflection, screen out after processing simultaneously, the image of catching is treated to infrared light electroprobe one, the coordinate figure of infrared light electroprobe two on projecting plane, and coordinate figure is transferred to PC.
Further, described interaction module comprises a pcb board, on described pcb board, be arranged side by side two and filtered projecting subassembly, described two filtration projecting subassemblies include a lens mount, in described lens mount, be disposed with camera lens, optical filter and sensitive chip, described sensitive chip is placed on pcb board, described two optical filters that filter projecting subassemblies respectively can saturating the first wavelength and the infrared ray of second wave length, and two sensitive chips that filter projecting subassemblies can only receive respectively the first wavelength that corresponding optical filter sees through and the infrared ray of second wave length; Described pcb board is connected with described PC.
Further, the described infrared ray that infrared light electroprobe one, infrared light electroprobe two are sent is distinguished operation and is specially: infrared light electroprobe one, infrared light electroprobe two are write operation on projecting plane simultaneously, infrared light pen one sends the infrared ray of the first wavelength, and infrared light electroprobe two sends the infrared ray of second wave length; Two infrared rays can be simultaneously by two camera lenses that filter projecting subassembly, camera lens below is separately installed with the ultrared optical filter of saturating the first wavelength of energy and second wave length, such two optical filters can only see through respectively the first corresponding wavelength and the infrared ray of second wave length, now two optical filter belows are provided with corresponding sensitive chip, two sensitive chips can only receive respectively the first wavelength that corresponding optical filter sees through and the infrared ray of second wave length, thereby have realized the differentiation to two infrared light electroprobes.
Further, the described infrared light to generation reflection screens out to process and is specially: infrared light electroprobe one sends the infrared ray of the first wavelength, pass through optical filter, the sensitive chip that optical filter is corresponding can only be accepted the infrared ray of the first wavelength, the infrared ray sending due to infrared light electroprobe one passes through the infrared light of infrared light electroprobe two structure antireflection parts, the portrait that now sensitive chip receives has two hot spots to be respectively a, b, two areas corresponding to hot spot are S (a), S (b), a hot spot is that infrared light electroprobe connects the luminous point catching on sensitive chip through optical filter always, and b hot spot to be infrared light electroprobe one light reflect on infrared light electroprobe two sees through the luminous point that same optical filter catches on same sensitive chip, the infrared light intensity reflecting on infrared light electroprobe two due to infrared light electroprobe one extremely a little less than, : S (b) <<S (a), when sensitive chip catches two hot spot a, b, can obtain hot spot a, b in the positional information of sensitive chip, the hot spot a that processing obtains, the information of b are respectively: hot spot a (X (a), Y (a), S (a)), hot spot b (X (b), Y (b), S (b)), X (a) wherein, Y (a) is respectively the X and Y coordinates of spot a, X (b), Y (b) is respectively the X and Y coordinates of spot b, area to hot spot a, b sorts, sequence retains the large hot spot of area, can obtain required hot spot coordinate information, thus complete infrared ray that infrared light electroprobe one sends by infrared light electroprobe two structure antireflection parts infrared light screen out, in like manner, the infrared ray that infrared light electroprobe two sends also can screen out by the infrared light of infrared light electroprobe one structure antireflection part.
Tool of the present invention has the following advantages: user uses infrared light electroprobe one, two to write operation on plate face, can carry out completely independently feature operation, the phenomenon that there will not be two ID exchanges, realizing true two writes, for example teacher is using infrared light electroprobe one to carry out the annotations and comments of red pen, student can use two pairs of examination questions of infrared light electroprobe to answer, and realized like this in modern teaching about the theory of teachers and students' interaction, strengthens the interest of teaching.In addition, two pens can infinite approach until completely overlap and write, and there is not jumping the misoperations such as a string pen.
Accompanying drawing explanation
Fig. 1 is the structural representation of apparatus of the present invention.
Fig. 2 is the structural representation of apparatus of the present invention interaction.
When Fig. 3 is the infrared ray that sends of infrared light electroprobe one of the present invention by the infrared light of infrared light electroprobe two structure antireflection parts, the picture that sensitive chip catches.
When Fig. 4 is the infrared ray that sends of infrared light electroprobe two of the present invention by the infrared light of infrared light electroprobe one structure antireflection part, the picture that sensitive chip catches.
Embodiment
Refer to shown in Fig. 1 to Fig. 4, the present invention a kind ofly realizes two and writes the interactive projection device of writing with two infinite approachs, and described device comprises at least two infrared light electroprobes 1 and infrared light electroprobe 22, PC 3, projector 4 and interaction module 5; Described infrared light electroprobe 1, infrared light electroprobe 22 are positioned on the projecting plane 6 of electronic whiteboard, and infrared light electroprobe 1 sends the infrared ray of the first wavelength, and described infrared light electroprobe 22 sends the infrared ray of second wave length, and the first wavelength and second wave length are not identical; Described PC 3 is connected with interaction module 5 with projector 4 respectively, 5 pairs of infrared light electroprobes 1 of described interaction module, writing of infrared light electroprobe 22 are caught, and the infrared ray that infrared light electroprobe 1, infrared light electroprobe 22 are sent is distinguished operation, 5 pairs of images of catching of interaction module are treated to infrared light electroprobe 1, the coordinate figure of infrared light electroprobe 22 on projecting plane 6, and coordinate figure is transferred to PC 3.Described PC 3 can be built in the independently PC 3 of putting in or beyond projector 4.
In the present invention, described interaction module 5 comprises a pcb board 51, on described pcb board 51, be arranged side by side two and filtered projecting subassembly 52, described two filtration projecting subassemblies 52 include a lens mount 521, in described lens mount 521, be disposed with camera lens 522, optical filter 523 and sensitive chip 524, described sensitive chip 524 is placed on pcb board 51, described two are filtered optical filter 523 difference saturating first wavelength of energy of projecting subassembly 52 and the infrared ray of second wave length, and two sensitive chips that filter projecting subassemblies 52 can only receive respectively the infrared ray of the first wavelength that corresponding optical filter 523 sees through and second wave length (as an optical filter can saturating the first wavelength, another optical filter is second wave length thoroughly, after an optical filter, a corresponding sensitive chip can only receive the infrared ray of the first wavelength, after another optical filter, another corresponding sensitive chip can only receive the infrared ray of second wave length), described pcb board 51 is connected with described PC 3.
The present invention also provides a kind of and has realized two and write the interaction method of writing with two infinite approachs, and described interaction method need provide at least two infrared light electroprobes 1 and infrared light electroprobe 22, PC 3, projector 4 and interaction module 5;
Described method is specially: when described infrared light electroprobe 1 and infrared light electroprobe 22 keep a distance to write, infrared light electroprobe 1 sends the infrared ray of the first wavelength, and infrared light electroprobe 22 sends the infrared ray of second wave length, and the first wavelength and second wave length are not identical, described PC 3 through projector 4 by image projection on the projecting plane 6 of electronic whiteboard, 5 pairs of infrared light electroprobes 1 of described interaction module, writing of infrared light electroprobe 22 are caught, and the infrared ray that infrared light electroprobe 1, infrared light electroprobe 22 are sent is distinguished operation, 5 pairs of images of catching of interaction module are treated to infrared light electroprobe 1, the coordinate figure of infrared light electroprobe 22 on projecting plane 6, and coordinate figure is transferred to PC 3, or described infrared light electroprobe 1 and infrared light electroprobe 22 infinite approachs are when write, infrared light electroprobe 1 and infrared light electroprobe 22 produce the infrared light of reflection between the two, 5 pairs of infrared light electroprobes 1 of described interaction module, writing of infrared light electroprobe 22 caught, and to infrared light electroprobe 1, the infrared ray that infrared light electroprobe 22 sends is distinguished operation, to there is the infrared light of reflection, screen out after processing simultaneously, the image of catching is treated to infrared light electroprobe 1, the coordinate figure of infrared light electroprobe 22 on projecting plane 6, and coordinate figure is transferred to PC 3.
In the present invention, described interaction module 5 comprises a pcb board 51, on described pcb board 51, be arranged side by side two and filtered projecting subassembly 52, described two filtration projecting subassemblies 52 include a lens mount 521, in described lens mount 521, be disposed with camera lens 522, optical filter 523 and sensitive chip 524, described sensitive chip 524 is placed on pcb board 51, described two are filtered optical filter 523 difference saturating first wavelength of energy of projecting subassembly 52 and the infrared ray of second wave length, and two sensitive chips 524 that filter projecting subassemblies 52 can only receive respectively the infrared ray of the first wavelength that corresponding optical filter 523 sees through and second wave length (as an optical filter can saturating the first wavelength, another optical filter is second wave length thoroughly, after an optical filter, a corresponding sensitive chip can only receive the infrared ray of the first wavelength, after another optical filter, another corresponding sensitive chip can only receive the infrared ray of second wave length), described pcb board 51 is connected with described PC 3.
The described infrared ray that infrared light electroprobe 1, infrared light electroprobe 22 are sent is distinguished operation and is specially: infrared light electroprobe 1, infrared light electroprobe 22 are write operation on projecting plane 6 simultaneously, infrared light pen 1 sends the infrared ray of the first wavelength, and infrared light electroprobe 22 sends the infrared ray of second wave length; Two infrared rays can be simultaneously by two camera lenses 522 that filter projecting subassembly 52, camera lens below is separately installed with the ultrared optical filter 523 of saturating the first wavelength of energy and second wave length, such two optical filters 523 can only see through respectively the first corresponding wavelength and the infrared ray of second wave length, now two optical filter 523 belows are provided with corresponding sensitive chip 524, two sensitive chips 524 can only receive respectively the first wavelength that corresponding optical filter sees through and the infrared ray of second wave length, thereby have realized the differentiation to two infrared light electroprobes.
The described infrared light to generation reflection screens out to process and is specially: infrared light electroprobe 1 sends the infrared ray of the first wavelength, by optical filter 523, 524 infrared rays that can only accept the first wavelength of sensitization core of optical filter 523 correspondences, the infrared ray sending due to infrared light electroprobe 1 passes through the infrared light of infrared light electroprobe 22 structure antireflection parts, as shown in Figure 3, the portrait that now sensitive chip receives has two hot spots to be respectively a, b, two areas corresponding to hot spot are S (a), S (b), a hot spot is that infrared light electroprobe 1 directly sees through the luminous point that optical filter 523 catches on sensitive chip, and b hot spot to be infrared light electroprobe one 1 light reflect on infrared light electroprobe 22 sees through the luminous point that same optical filter catches on same sensitive chip, the infrared light intensity reflecting on infrared light electroprobe 22 due to infrared light electroprobe 1 extremely a little less than, : S (b) <<S (a), when sensitive chip catches two hot spot a, b, can obtain hot spot a, b in the positional information of sensitive chip, the hot spot a that processing obtains, the information of b are respectively: hot spot a (X (a), Y (a), S (a)), hot spot b (X (b), Y (b), S (b)), X (a) wherein, Y (a) is respectively the X and Y coordinates of spot a, X (b), Y (b) is respectively the X and Y coordinates of spot b, area to hot spot a, b sorts, sequence retains the large hot spot of area, can obtain required hot spot coordinate information, thus complete infrared ray that infrared light electroprobe 1 sends by infrared light electroprobe 22 structure antireflection parts infrared light screen out, in like manner, as shown in Figure 4, the infrared ray that infrared light electroprobe 22 sends also can screen out by the infrared light of infrared light electroprobe one 1 structure antireflection parts, infrared light intensity now extremely a little less than: S (a) <<S (b).
Below in conjunction with a specific embodiment, the invention will be further described:
As shown in Figure 2, on projecting plane, infrared light pen 1,2 is write operation simultaneously, and infrared light pen 1 sends the infrared ray of X wavelength, and infrared light pen 2 sends the infrared ray of Y wavelength; Infrared ray can pass through two camera lenses simultaneously, but because camera lens below is separately installed with arrowband infrared fileter, can only see through wavelength is respectively the infrared ray of X, Y, so the sensitive chip of optical filter below can only be received the infrared ray of X, Y wavelength, has so just realized the differentiation to two pens.
On projecting plane, close simultaneously the writing while operating of infrared light pen 1,2, infrared light pen 1 sends the infrared ray of X wavelength, and the hot spot of formation is a, and infrared light pen 2 sends the infrared ray of Y wavelength, and the hot spot of formation is b; Infrared ray can pass through two camera lenses simultaneously, but because camera lens below is separately installed with arrowband infrared fileter, can only see through wavelength is respectively the infrared ray of X, Y, so the sensitive chip of optical filter below can only be received the infrared ray of X, Y wavelength, one sensitive chip can catch picture as shown in Figure 3, and another sensitive chip can catch picture as shown in Figure 4.If two infrared light pens 1,2 are being write over certain distance, the infrared that arrowband infrared fileter can be sent completely separately.
But because two infrared light pens are near writing, the infrared ray sending on pen can be by the other side a body structure antireflection part infrared, so two sensitive chips, catch on picture and there will be 2 hot spots, but because the brightness of hot spot is different, so will carry out graphical analysis, just can distinguish real infrared light pen.
For example: infrared light pen 1, 2 near write operation simultaneously, infrared light pen 1 sends the infrared ray of X wavelength, by arrowband infrared fileter, the first sensitive chip catches picture as shown in Figure 3, the portrait now receiving has two hot spots to be respectively a, b, two areas corresponding to hot spot are S (a), S (b), a hot spot is that infrared light pen 1 directly sees through the luminous point that infrared the first optical filter in arrowband catches on the first sensitive chip, and b hot spot to be infrared light pen 1 light reflect on infrared light pen 2 sees through the luminous point that infrared the first optical filter in arrowband catches on the first sensitive chip, the infrared light intensity reflecting on infrared light pen 2 due to infrared light pen 1 extremely a little less than, so have: S (b) <<S (a), two hot spots that the first sensitive chip catches, process picture, can be easy to obtain hot spot in the positional information of the first sensitive chip, process the hot spot a obtaining, and the information of b is respectively:
Hot spot a (X (a), Y (a), S (a)), hot spot b (X (b), Y (b), S (b))
Area to hot spot sorts, and sequence retains the hot spot of area maximum, can obtain correct hot spot coordinate information.
In like manner, the second sensitive chip catches picture as shown in Figure 4, the portrait now receiving has two hot spots to be respectively a, b, two areas corresponding to hot spot are S (a), S (b), a hot spot is that infrared light pen 2 directly sees through the luminous point that infrared the second optical filter in arrowband catches on the second sensitive chip, and b hot spot to be infrared light pen 2 light reflect on infrared light pen 1 sees through the luminous point that infrared the second optical filter in arrowband catches on the second sensitive chip, the infrared light intensity reflecting on infrared light pen 1 due to infrared light pen 2 extremely a little less than, so have: S (a) <<S (b), two hot spots that the second sensitive chip catches, process picture, can be easy to obtain hot spot in the positional information of the second sensitive chip, process the hot spot a obtaining, and the information of b is respectively:
Hot spot a (X (a), Y (a), S (a)), hot spot b (X (b), Y (b), S (b))
Area to hot spot sorts, and sequence retains the hot spot of area maximum, can obtain correct hot spot coordinate information.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (7)
1. realize two and write an interactive projection device of writing with two infinite approachs, it is characterized in that: described device comprises at least two infrared light electroprobes one and infrared light electroprobe two, PC, projector and interaction module; Described infrared light electroprobe one, infrared light electroprobe two are positioned on the projecting plane of electronic whiteboard, and infrared light electroprobe one sends the infrared ray of the first wavelength, and described infrared light electroprobe two sends the infrared ray of second wave length, and the first wavelength and second wave length are not identical; Described PC is connected with interaction module with projector respectively, described interaction module is caught infrared light electroprobe one, writing of infrared light electroprobe two, and the infrared ray that infrared light electroprobe one, infrared light electroprobe two are sent is distinguished operation, interaction module is treated to infrared light electroprobe one, the coordinate figure of infrared light electroprobe two on projecting plane to the image of catching, and coordinate figure is transferred to PC.
2. according to claim 1ly realize two and write the interactive projection device of writing with two infinite approachs, it is characterized in that: described PC can be built in the independently PC of putting in or beyond projector.
3. according to claim 1ly realize two and write the interactive projection device of writing with two infinite approachs, it is characterized in that: described interaction module comprises a pcb board, on described pcb board, be arranged side by side two and filtered projecting subassembly, described two filtration projecting subassemblies include a lens mount, in described lens mount, be disposed with camera lens, optical filter and sensitive chip, described sensitive chip is placed on pcb board, described two are filtered optical filter difference saturating first wavelength of energy of projecting subassembly and the infrared ray of second wave length, and two sensitive chips that filter projecting subassemblies can only receive respectively the first wavelength that corresponding optical filter sees through and the infrared ray of second wave length, described pcb board is connected with described PC.
4. realize two and write an interaction method of writing with two infinite approachs, it is characterized in that: described interaction method need provide at least two infrared light electroprobes one and infrared light electroprobe two, PC, projector and interaction module;
Described method is specially: when described infrared light electroprobe one and infrared light electroprobe two keep a distance to write, infrared light electroprobe one sends the infrared ray of the first wavelength, and infrared light electroprobe two sends the infrared ray of second wave length, and the first wavelength and second wave length are not identical; Described PC through projector by image projection on the projecting plane of electronic whiteboard, described interaction module is caught infrared light electroprobe one, writing of infrared light electroprobe two, and the infrared ray that infrared light electroprobe one, infrared light electroprobe two are sent is distinguished operation, interaction module is treated to infrared light electroprobe one, the coordinate figure of infrared light electroprobe two on projecting plane to the image of catching, and coordinate figure is transferred to PC; Or described infrared light electroprobe one and infrared light electroprobe two infinite approachs are when write, infrared light electroprobe one and infrared light electroprobe two produce the infrared light of reflection between the two, described interaction module is caught infrared light electroprobe one, writing of infrared light electroprobe two, and the infrared ray that infrared light electroprobe one, infrared light electroprobe two are sent is distinguished operation, to there is the infrared light of reflection, screen out after processing simultaneously, the image of catching is treated to infrared light electroprobe one, the coordinate figure of infrared light electroprobe two on projecting plane, and coordinate figure is transferred to PC.
5. according to claim 4ly realize two and write the interaction method of writing with two infinite approachs, it is characterized in that: described interaction module comprises a pcb board, on described pcb board, be arranged side by side two and filtered projecting subassembly, described two filtration projecting subassemblies include a lens mount, in described lens mount, be disposed with camera lens, optical filter and sensitive chip, described sensitive chip is placed on pcb board, described two are filtered optical filter difference saturating first wavelength of energy of projecting subassembly and the infrared ray of second wave length, and two sensitive chips that filter projecting subassemblies can only receive respectively the first wavelength that corresponding optical filter sees through and the infrared ray of second wave length, described pcb board is connected with described PC.
6. according to claim 5ly realize two and write the interaction method of writing with two infinite approachs, it is characterized in that: the described infrared ray that infrared light electroprobe one, infrared light electroprobe two are sent is distinguished operation and is specially: infrared light electroprobe one, infrared light electroprobe two are write operation on projecting plane simultaneously, infrared light pen one sends the infrared ray of the first wavelength, and infrared light electroprobe two sends the infrared ray of second wave length; Two infrared rays can be simultaneously by two camera lenses that filter projecting subassembly, camera lens below is separately installed with the ultrared optical filter of saturating the first wavelength of energy and second wave length, such two optical filters can only see through respectively the first corresponding wavelength and the infrared ray of second wave length, now two optical filter belows are provided with corresponding sensitive chip, two sensitive chips can only receive respectively the first wavelength that corresponding optical filter sees through and the infrared ray of second wave length, thereby have realized the differentiation to two infrared light electroprobes.
7. according to claim 5ly realize two and write the interaction method of writing with two infinite approachs, it is characterized in that: the described infrared light to generation reflection screens out to process and is specially: infrared light electroprobe one sends the infrared ray of the first wavelength, pass through optical filter, the sensitive chip that optical filter is corresponding can only be accepted the infrared ray of the first wavelength, the infrared ray sending due to infrared light electroprobe one passes through the infrared light of infrared light electroprobe two structure antireflection parts, the portrait that now sensitive chip receives has two hot spots to be respectively a, b, two areas corresponding to hot spot are S (a), S (b), a hot spot is that infrared light electroprobe connects the luminous point catching on sensitive chip through optical filter always, and b hot spot to be infrared light electroprobe one light reflect on infrared light electroprobe two sees through the luminous point that same optical filter catches on same sensitive chip, the infrared light intensity reflecting on infrared light electroprobe two due to infrared light electroprobe one extremely a little less than, : S (b) <<S (a), when sensitive chip catches two hot spot a, b, can obtain hot spot a, b in the positional information of sensitive chip, the hot spot a that processing obtains, the information of b are respectively: hot spot a (X (a), Y (a), S (a)), hot spot b (X (b), Y (b), S (b)), X (a) wherein, Y (a) is respectively the X and Y coordinates of spot a, X (b), Y (b) is respectively the X and Y coordinates of spot b, area to hot spot a, b sorts, sequence retains the large hot spot of area, can obtain required hot spot coordinate information, thus complete infrared ray that infrared light electroprobe one sends by infrared light electroprobe two structure antireflection parts infrared light screen out, in like manner, the infrared ray that infrared light electroprobe two sends also can screen out by the infrared light of infrared light electroprobe one structure antireflection part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410171764.7A CN103941872B (en) | 2014-04-25 | 2014-04-25 | Interactive projection method for achieving writing with two pens and writing with two pens approaching to each other infinitely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410171764.7A CN103941872B (en) | 2014-04-25 | 2014-04-25 | Interactive projection method for achieving writing with two pens and writing with two pens approaching to each other infinitely |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103941872A true CN103941872A (en) | 2014-07-23 |
| CN103941872B CN103941872B (en) | 2017-02-15 |
Family
ID=51189567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410171764.7A Expired - Fee Related CN103941872B (en) | 2014-04-25 | 2014-04-25 | Interactive projection method for achieving writing with two pens and writing with two pens approaching to each other infinitely |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103941872B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105653025A (en) * | 2015-12-22 | 2016-06-08 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN106547410A (en) * | 2016-11-24 | 2017-03-29 | 南京仁光电子科技有限公司 | A kind of system of many layer operations based on same screen |
| CN106648171A (en) * | 2016-12-08 | 2017-05-10 | 南京仁光电子科技有限公司 | Interactive system and method based on writing pens |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1387406A (en) * | 1971-04-30 | 1975-03-19 | Image Analysing Computers Ltd | Feature selection in image analysis |
| CN102109929A (en) * | 2009-12-28 | 2011-06-29 | 鸿富锦精密工业（深圳）有限公司 | Electronic whiteboard system |
| CN102880356A (en) * | 2012-09-13 | 2013-01-16 | 福州锐达数码科技有限公司 | Method for realizing dual-pen writing based on electronic white board |
| CN103500017B (en) * | 2013-09-17 | 2016-09-14 | 锐达互动科技股份有限公司 | A kind of many of photoelectricity interaction module identifies and tracking |
-
2014
- 2014-04-25 CN CN201410171764.7A patent/CN103941872B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105653025A (en) * | 2015-12-22 | 2016-06-08 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN105653025B (en) * | 2015-12-22 | 2019-12-24 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN106547410A (en) * | 2016-11-24 | 2017-03-29 | 南京仁光电子科技有限公司 | A kind of system of many layer operations based on same screen |
| CN106648171A (en) * | 2016-12-08 | 2017-05-10 | 南京仁光电子科技有限公司 | Interactive system and method based on writing pens |
| CN106648171B (en) * | 2016-12-08 | 2019-03-08 | 南京仁光电子科技有限公司 | A kind of interactive system and method based on lettering pen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103941872B (en) | 2017-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101231450B (en) | Multipoint and object touch panel arrangement as well as multipoint touch orientation method | |
| US9560281B2 (en) | Projecting an image of a real object | |
| CN203433529U (en) | Miniature iris identification camera module and terminal device | |
| CN102323868B (en) | Man-machine multipoint interaction method and device based on infrared image | |
| CN101644976A (en) | Surface multipoint touching device and positioning method thereof | |
| CN101639746B (en) | Automatic calibration method of touch screen | |
| CN100478860C (en) | Electronic plane display positioning system and positioning method | |
| CN101776971B (en) | Multi-point touch screen device and positioning method | |
| CN109584220A (en) | A kind of silk-screen localization method, silk-screen defect inspection method and relevant apparatus | |
| CN103941872A (en) | Interactive projection device and method for achieving writing with two pens and writing with two pens approaching to each other infinitely | |
| CN110297556A (en) | A kind of electronic projection drawing board system and its processing method based on image recognition technology | |
| CN107682595B (en) | interactive projection method, system and computer readable storage medium | |
| CN101587404A (en) | Post-positioning device and method based on pick-up head and application thereof | |
| US20100295823A1 (en) | Apparatus for touching reflection image using an infrared screen | |
| CN102193687A (en) | Multipoint touch screen interactive system based on LABVIEW | |
| CN202815789U (en) | Electronic white board system with orthogonal projection image double-pen writing function | |
| KR20150062952A (en) | Laser projector with position detecting capability and position detection method using the same | |
| CN101950221A (en) | Multi-touch device based on sphere display and multi-touch method thereof | |
| CN101620485B (en) | Device and method for positioning light source | |
| CN107102781A (en) | A kind of tagging stylus and multipoint touch interactive system | |
| CN203012681U (en) | Interactive electronic whiteboard | |
| CN102236476A (en) | Optical touch screen system and method for judging relative distance of touch object | |
| DE202014104838U1 (en) | Mini projector | |
| CN106990906A (en) | A kind of PPT servicing units delineated | |
| CN103412680A (en) | Intelligent 3D projection virtual touch control display technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 350000 6, No. 1 Innovation Park, No. 3 east science and technology road, Minhou street, Minhou, Fuzhou. Patentee after: RETURNSTAR INTERACTIVE TECHNOLOGY GROUP Co.,Ltd. Address before: 350000 8 tower building, Orange Garden Industrial Park, 618 Jinshan Road, Jianxin Town, Cangshan District, Fuzhou, Fujian. Patentee before: RETURNSTAR INTERACTIVE TECHNOLOGY GROUP Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170215 |