CN103970298A - Photovoltaic pen and electronic white board system comprising same - Google Patents
Photovoltaic pen and electronic white board system comprising same Download PDFInfo
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- CN103970298A CN103970298A CN201310026048.5A CN201310026048A CN103970298A CN 103970298 A CN103970298 A CN 103970298A CN 201310026048 A CN201310026048 A CN 201310026048A CN 103970298 A CN103970298 A CN 103970298A
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Abstract
The invention discloses a photovoltaic pen and an electronic white board system comprising the same. The photovoltaic pen comprises a pen body and a pen point, wherein the pen point is arranged at the front end of the pen body, a control panel as well as an infrared light emitting device and a photosensitive sensor which are electrically connected with the control panel is arranged in the pen point or the pen body, the photosensitive sensor is fixed at the top end of the pen point, senses a reflected micropower infrared signal and transmits a high-level signal or a low-level signal to the control panel, and the control panel controls the infrared light emitting device according to the level signal to transmit a micropower infrared signal or a high-power infrared signal. The photovoltaic pen is simple in structure and flexible in use, and does not produce or leave physical scratches on a displaying and writing device, so that the service life of the pen point is prolonged.
Description
Technical field
The present invention relates to a kind of photoelectricity input media, relate in particular to a kind of photoelectric pen that adopts photoelectronic imaging principle, and the electric whiteboard system that comprises this photoelectric pen, electronic whiteboard field belonged to.
Background technology
Electric whiteboard system is that a kind of multiple technologies means such as light harvesting electricity in the fields such as education, training, video conference, displaying, software, communication that are widely used in are in the new high-tech product of one, realize interactive function by computing machine, flat panel TV or projection screen, not only can deposit written contents in computing machine very easily, also can edit screen content, revise, the operation such as mark, and computing machine is controlled, reach and control and the mutual object showing.
Mainly exist in the market electromagnetic induction principle, ultrasonic ranging principle, infrared tube to detect the electric whiteboard system of principle and infrared electro image-forming principle.
Wherein, the electric whiteboard system of infrared electro image-forming principle mainly comprises photoelectric pen, demonstration and writing device (such as wall of projection blank, flat panel TV, projection screen and applicable Projection Display etc., be convenient to show the content that wish is shown and write operation etc.), (inside comprises photoelectronic imaging, processing and communication module to signal receiving box, so that picked-up photoelectric pen show and writing device on operational motion and the track of light on and off, form effectively operation trace signal and transfer to computing machine).
The photoelectric pen using in infrared electro image-forming principle electronic whiteboard field, is mostly the photoelectric pen that belongs to mechanical switch principle, and below main employing, two kinds of modes realize lighting of photoelectric pen and extinguish:
One, the electric conductivity parts electroconductive component fixing with another of employing activity contacts and separation principle, simulation conductive switch is realized the light on and off of photoelectric pen, when movable conductive component under external force, contact with another parts, now illuminating circuit is switched on, and photoelectric pen is luminous; In the time cancelling external force, the inner elastic device arranging of photoelectric pen produces screen resilience, and illuminating circuit is disconnected, and now photoelectric pen extinguishes.
Two, adopt the principle of embedded touch-switch, in the time that movable part is subject to external force, movable part extruding touch-switch, now touch-switch closure, illuminating circuit is switched on, and photoelectric pen is lit; In the time cancelling external force, touch-switch is resetted by its inner elastomeric parts, and touch-switch disconnects, and now illuminating circuit is disconnected, and photoelectric pen extinguishes.
Above-mentioned two kinds of photoelectric pen internal control circuits are simple, and still, movable electric conductivity parts and fixing conductive parts are frequently touched, and can produce mechanical wear, thereby cause loose contact; Movable part must reliably contact by guarantee under user's pressed by external force effect, and makes photoelectric pen luminous; When movable part is being subject to external force when larger, the elastomeric element in embedded touch-switch can be damaged, causes photoelectric pen to use; Adopt this photoelectric pen by External Force Acting principle, easily on demonstration and writing device (as projection blank, flat panel TV etc.), produce or stay the cut of physical injury; The photoelectric pen pencil contacting with demonstration and writing device through after a while wearing and tearing after, the pencil that need to more renew; The photoelectric pen that adopts mechanical switch principle, complicated structure, should realize fine motion and get final product valid function, ensure that again contact contact is reliable, also to after operational motion is cancelled, can produce in time screen resilience, when screen resilience is too large, writes and just need larger external force; Screen resilience too hour, again can not Rapid reset in the time that operational motion is cancelled or dynamics to cause not photoelectric pen to continue luminous, produce misoperation.
In the time that mechanical type photoelectric pen is applied to long teacher's pointer, because handle is long, dynamics cannot put on the nib of mechanical type photoelectric pen, user cannot realize and writes in real time or mark at all, now, can only realize shirtsleeve operation at the frequent push switch of the handbar of teacher's pointer, in the time that needs are write, the hand of holding teacher's pointer should complete the shift action of writing writing, decontrol or push switch at the gap of the character stroke of writing again, make the infraluminescence pipe of teacher's pointer nib be lit or extinguish according to having or not of stroke, can make like this user have more visitors or business than one can attend to, use very inconvenient.
Summary of the invention
Object of the present invention is exactly in order to solve the above-mentioned problems in the prior art, and a kind of photoelectric pen that all can write and need not contact writing device and can control light on and off on soft or rigid writing device is provided.
Meanwhile, the present invention also provides a kind of electric whiteboard system that comprises photoelectric pen.
Object of the present invention is achieved through the following technical solutions: a kind of photoelectric pen, comprise a body and nib, described nib is arranged at the front end of described body, described body or written inside are provided with control panel, and the infrared light-emitting device and the light sensor that are electrically connected with control panel, described light sensor is fixedly installed on the top of described nib, the micropower infrared signal that induction is reflected, and transmit high level signal or low level signal to described control panel, infrared light-emitting device transmitting micropower infrared signal or Infrared High-Power signal described in the level signal control that described control panel transmits according to described light sensor, and the inside of described body is provided with power supply, described body afterbody protrudes a push switch is set, and described control panel, described power supply and described switch form series loop.
Being further defined to of technical solution of the present invention, described infrared light-emitting device comprises the micropower infraluminescence pipe and the Infrared High-Power luminotron that is arranged at a body or nib inside that are arranged at described written top, described micropower infraluminescence pipe and described Infrared High-Power luminotron are electrically connected with described control panel by wire
In the time that described control panel receives the low level signal that described light sensor transmits, micropower luminotron transmitting micropower infrared signal described in described control panel control, controls described Infrared High-Power luminotron and extinguishes;
In the time that described control panel receives the high level signal that described light sensor transmits, micropower infraluminescence pipe extinguishes described in described control panel control, controls described Infrared High-Power luminotron transmitting Infrared High-Power signal;
When described Infrared High-Power luminotron transmitting Infrared High-Power signal reaches after Preset Time, the pin that described control panel arranges described light sensor is low level, control described micropower luminotron transmitting micropower infrared signal simultaneously, control described Infrared High-Power luminotron and extinguish.
Further, described infrared light-emitting device is to be arranged at a body or the inner infraluminescence pipe of nib, and described infraluminescence pipe is electrically connected with described control panel by wire,
In the time that described control panel receives the low level signal of described light sensor transmission, described control panel transmits weak current to described infraluminescence pipe, controls described infraluminescence pipe transmitting micropower infrared signal;
In the time that described control panel receives the high level signal of described light sensor transmission, described control panel transmits heavy current to described infraluminescence pipe, controls described infraluminescence pipe transmitting Infrared High-Power signal;
When described infraluminescence pipe transmitting Infrared High-Power signal reaches after Preset Time, the pin that described control panel arranges described light sensor is low level, transmit weak current to described infraluminescence pipe simultaneously, control described infraluminescence pipe transmitting micropower infrared signal.
Further, between described nib and described body, expansion link is set.
Further, the top of described nib arranges a perforate, and the position of described perforate is corresponding with the position of described light sensor.
Further, the shell of described nib is light transmissive material.
Another technical scheme provided by the invention is: a kind of electric whiteboard system, comprise computing machine, demonstration and writing device, photoelectric pen and receiving and processing device, described computing machine is electrically connected with described demonstration and writing device, image signal transmission is to described demonstration and writing device, it is characterized in that, described photoelectric pen is the photoelectric pen described in claim 1 or 2 or 3, and its mode with non-physical contact writes, marks or call various software on described demonstration and writing device; Described receiving and processing device is the photosignal receiving and processing device based on photoelectronic imaging principle, the infrared wavelength of its imaging is identical with the infrared wavelength of described photoelectric pen, the Infrared High-Power signal that described receiving and processing device gathers the transmitting of described photoelectric pen show and writing device on the light spot image that forms, image information is converted to the location coordinate information of photoelectric pen, and described location coordinate information is fed back to described computing machine.
The technical scheme that the present invention is further limited is, described demonstration and writing device comprise projector and writing device, described writing device is soft writing device or rigid writing device, described soft writing device comprises projection screen, described rigid writing device, for can produce irreflexive device, comprises the smooth wall of projection blank and applicable projection imaging etc.
Further, described demonstration and writing device are flat panel TV, comprise LCD TV, rear-projection TV etc.
beneficial effect
A kind of photoelectric pen of the present invention, simple in structure,, there is not the problem of switch block wearing and tearing or loose contact in no moving parts, nonelastic resetting means, without parts such as embedded touch-switchs; As long as just can write near demonstration and writing device, can on demonstration and writing device, not produce the cut that leaves physical injury, the devices such as projection blank, projection screen, flat panel TV or wall have been played to protective effect; Need only near demonstration and writing device, need not exert oneself just can write, do not have the wearing and tearing between nib and demonstration and writing device, need not change nib, extend written serviceable life, save material; Pass through adjustable telescopic rod, realize operation at a distance, comprise click, mark or call the actions such as software, the more important thing is can realize at a distance photoelectric pen near show and writing device is just write, away from showing and the action of the real-time writing style that just stops of writing device, convenient and practical; No-movable part in photoelectric pen, and be all standard component, reduce difficulty of processing, and inner without Precision Machining parts, be easy to high-quality batch production; Both can on hard projection blank or flat panel TV, apply, can on soft projection screen, apply again applying flexible.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of photoelectric pen described in embodiment 1;
Fig. 2 is the structural representation of a kind of photoelectric pen described in embodiment 2;
Fig. 3 is the structural representation of a kind of photoelectric pen described in embodiment 3;
Fig. 4 is the structural representation of a kind of photoelectric pen described in embodiment 4.
Embodiment
embodiment 1
The disclosed a kind of photoelectric pen of the present embodiment, its structural representation as shown in Figure 1, comprise a body 8, nib 9, control panel 5, infrared light-emitting device, light sensor 3, power supply 6 and switch 7, infrared light-emitting device comprises micropower infraluminescence pipe 2 and Infrared High-Power luminotron 4.
Nib 9 shells are light transmissive material, be arranged at the front end of a body 8, and a perforate is set on top.
Micropower infraluminescence pipe 2 and light sensor 3 are installed on the head of nib 9, corresponding with the perforate on written 9 tops.Infrared High-Power luminotron 4 is installed in nib 9, and control panel 5 is arranged in a body 8.Micropower infraluminescence pipe 2, Infrared High-Power luminotron 4 and light sensor 3 are electrically connected with control panel 5 by two wires respectively.
Power supply 6 is arranged at a body 8 inside, and switch 7 protrudes and is arranged at a body 8 afterbodys, and control panel 5, power supply 6 and switch 7 form series loop.
Photoelectric pen described in the present embodiment can form electric whiteboard system, described electric whiteboard system comprises computing machine, demonstration and writing device, photoelectric pen and receiving and processing device, described computing machine is electrically connected with described demonstration and writing device, and image signal transmission is to described demonstration and writing device.Described photoelectric pen writes, marks or call various software in the mode of non-physical contact on described demonstration and writing device.Described receiving and processing device is the photosignal receiving and processing device based on photoelectronic imaging principle, the infrared wavelength of its imaging is identical with the infrared wavelength of described photoelectric pen, the Infrared High-Power signal that described receiving and processing device gathers the transmitting of described photoelectric pen show and writing device on the light spot image that forms, image information is converted to the location coordinate information of photoelectric pen, and described location coordinate information is fed back to described computing machine.Described demonstration and writing device comprise projector and demonstration and writing device 10, described demonstration and writing device are soft writing device or rigid writing device, described soft writing device comprises projection screen, described rigid writing device, for can produce irreflexive device, comprises the smooth wall of projection blank and applicable projection imaging etc.
When above-mentioned electric whiteboard system uses, computing machine, demonstration and writing device, photoelectric pen and receiving and processing device assembling are set, open computing machine, demonstration and writing device and receiving and processing device.The switch 7 of pressing photoelectric pen, the power supply of control panel 5 is switched on, and control panel 5 is started working.The pin of light sensor 3 is low level, and micropower luminotron 2 is launched the micropower infrared signal of 940nm, and Infrared High-Power luminotron 4 extinguishes.Photoelectric pen moves closer to and shows and writing device 10, when photoelectric pen apart from show and writing device 10 certain distances within the scope of time, light sensor 3 receives and shows and when the infrared signal of the 940nm that is reflected back of writing device reaches some strength, utilize the photoelectric effect of light sensor 3, the variation of light intensity is converted into the variation of electric weight, make light sensor 3 be converted into high level state by original low level state, and described high level is sent to control panel 5, in the present embodiment, light sensor 3 adopts the reflective infrared photoelectric sensor of single beam, its induction wavelength is 940nm, detecting distance is 0.25-2mm.Control panel 5 receives the high level signal that light sensor 3 transmits, and extinguishes micropower infraluminescence pipe 2, and controls Infrared High-Power luminotron 4 and launch the Infrared High-Power signal of 850nm, show and writing device on write, mark or call various software.The imaging wavelength of receiving and processing device is 850nm, the Infrared High-Power signal that described receiving and processing device gathers the transmitting of described photoelectric pen show and writing device on the light spot image that forms, image information is converted to the location coordinate information of photoelectric pen, and described location coordinate information is fed back to described computing machine, realize the information interaction with computing machine.
Infrared High-Power luminotron 4 is launched Infrared High-Power signal and is reached after 5ms, the pin that control panel 5 arranges light sensor 3 is low level, extinguish Infrared High-Power luminotron 4 simultaneously, control micropower luminotron 2 and launch micropower infrared signal, continue to judge the distance between photoelectric pen and demonstration and writing device, if distance is greater than the distance setting, keep Infrared High-Power luminotron 4 to extinguish, micropower luminotron 2 is launched the state of micropower infrared signal; If distance demonstration and writing device are less than set in distance range, transmit high level signal to control panel 5, so poll, until close photoelectric pen.
embodiment 2
The disclosed a kind of photoelectric pen of the present embodiment, as shown in Figure 2, the photoelectric pen in its structure and embodiment 1 is basic identical for its structural representation, and difference is that infrared light-emitting device is infraluminescence pipe 1, infraluminescence pipe 1 is arranged at written 9 inside, is electrically connected with control panel 5 by two wires.
It is identical with the electric whiteboard system of composition in embodiment 1 that photoelectric pen described in the present embodiment can form electric whiteboard system, and difference is that described demonstration and writing device are flat panel TV, comprise LCD TV, rear-projection TV etc.
When above-mentioned electric whiteboard system uses, computing machine, demonstration and writing device, photoelectric pen and receiving and processing device assembling are set, open computing machine, demonstration and writing device and receiving and processing device.The switch 7 of pressing photoelectric pen, the power supply of control panel 5 is switched on, and control panel 5 is started working.The pin of light sensor 3 is low level, and control panel 5 transmits weak current to infraluminescence pipe 1, controls infraluminescence pipe 1 and launches 940nm micropower infrared signal.Photoelectric pen moves closer to and shows and writing device 10, when photoelectric pen apart from show and writing device 10 certain distances within the scope of time, light sensor 3 receives and shows and when the infrared signal of the 940nm that is reflected back of writing device reaches some strength, utilize the photoelectric effect of light sensor 3, the variation of light intensity is converted into the variation of electric weight, make light sensor 3 be converted into high level state by original low level state, and described high level is sent to control panel 5, in the present embodiment, light sensor 3 adopts high sensitivity phototransistor, its induction wavelength is 940nm, effectively detecting distance is 0.25-2mm.Control panel 5 receives the high level signal that light sensor 3 transmits, and transmits heavy current to infraluminescence pipe 1, controls infraluminescence pipe 1 and launches 940nm Infrared High-Power signal, on demonstration and writing device, writes or calls various software.The imaging wavelength of receiving and processing device is 940nm, the Infrared High-Power signal that described receiving and processing device gathers the transmitting of described photoelectric pen show and writing device on the light spot image that forms, image information is converted to the location coordinate information of photoelectric pen, and described location coordinate information is fed back to described computing machine, realize the information interaction with computing machine.
When infraluminescence pipe 1 is launched Infrared High-Power signal and is reached 5ms, the pin that control panel 5 arranges light sensor 3 is low level, control panel 5 transmits weak current to infraluminescence pipe 1, control infraluminescence pipe 1 and launch micropower infrared signal, now judge the distance between photoelectric pen nib top and demonstration and writing device, if distance is greater than the distance setting, keep transmitting weak current to infraluminescence pipe 1; If distance demonstration and writing device are less than set in distance range, transmit heavy current to infraluminescence pipe 1, so repeating query, until close photoelectric pen.
embodiment 3
The disclosed a kind of photoelectric pen of the present embodiment, its structural representation as shown in Figure 3, photoelectric pen in its structure and embodiment 1 is basic identical, difference is: between the nib 9 of photoelectric pen and a body 8, expansion link 11 is set, the convenient length that regulates photoelectric pen, and control panel 5, light sensor 3, micropower infraluminescence pipe 2 and Infrared High-Power luminotron 4 are all arranged in nib 9.
It is identical with embodiment 1 that photoelectric pen described in the present embodiment can form electric whiteboard system.
Photoelectric pen described in the present embodiment and the electric whiteboard system that comprises photoelectric pen are identical with the principle of work of embodiment 1.
embodiment 4
The disclosed a kind of photoelectric pen of the present embodiment, its structural representation as shown in Figure 4, photoelectric pen in its structure and embodiment 2 is basic identical, different 4 are: between the nib 9 of photoelectric pen and a body 8, expansion link 11 is set, the convenient length that regulates photoelectric pen, and control panel 5, light sensor 3 and infraluminescence pipe 1 are all arranged in nib 9.
It is identical with embodiment 2 that photoelectric pen described in the present embodiment can form electric whiteboard system.
Photoelectric pen described in the present embodiment and the electric whiteboard system that comprises photoelectric pen are identical with the principle of work of embodiment 2.
In addition to the implementation, the present invention can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (9)
1. a photoelectric pen, comprise a body (8) and nib (9), described nib (9) is arranged at the front end of described body (8), it is characterized in that, the inside of described body (8) or nib (9) is provided with control panel (5), and the infrared light-emitting device and the light sensor (3) that are electrically connected with control panel (5), described light sensor (3) is fixedly installed on the top of described nib (9), the micropower infrared signal that induction is reflected, and transmit high level signal or low level signal to described control panel (5), infrared light-emitting device transmitting micropower infrared signal or Infrared High-Power signal described in the level signal control that described control panel (5) transmits according to described light sensor (3), and the inside of described body (8) is provided with power supply (6), described body (8) afterbody protrudes a push switch (7) is set, and described control panel (5), described power supply (6) and described switch (7) form series loop.
2. a kind of photoelectric pen according to claim 1, it is characterized in that, described infrared light-emitting device comprises and is arranged at the micropower infraluminescence pipe (2) on described nib (9) top and is arranged at a body (8) or Infrared High-Power luminotron (4) that nib (9) is inner, described micropower infraluminescence pipe (2) and described Infrared High-Power luminotron (4) are electrically connected with described control panel (5) by wire
In the time that described control panel (5) receives the low level signal of described light sensor (3) transmission, described control panel (5) is controlled described micropower luminotron (2) transmitting micropower infrared signal, controls described Infrared High-Power luminotron (4) and extinguishes;
In the time that described control panel (5) receives the high level signal of described light sensor (3) transmission, described control panel (5) is controlled described micropower infraluminescence pipe (2) and is extinguished, and controls described Infrared High-Power luminotron (4) transmitting Infrared High-Power signal;
When described Infrared High-Power luminotron (4) transmitting Infrared High-Power signal reaches after Preset Time, the pin that described control panel (5) arranges described light sensor (3) is low level, control described micropower luminotron (2) transmitting micropower infrared signal simultaneously, control described Infrared High-Power luminotron (4) and extinguish.
3. a kind of photoelectric pen according to claim 1, it is characterized in that, described infrared light-emitting device is for being arranged at a body (8) or the inner infraluminescence pipe (1) of nib (9), and described infraluminescence pipe (1) is electrically connected with described control panel (5) by wire
In the time that described control panel (5) receives the low level signal of described light sensor (3) transmission, described control panel (5) transmits weak current to described infraluminescence pipe (1), controls described infraluminescence pipe (1) transmitting micropower infrared signal;
In the time that described control panel (5) receives the high level signal of described light sensor (3) transmission, described control panel (5) transmits heavy current to described infraluminescence pipe (1), controls described infraluminescence pipe (1) transmitting Infrared High-Power signal;
When described infraluminescence pipe (1) transmitting Infrared High-Power signal reaches after Preset Time, the pin that described control panel (5) arranges described light sensor (3) is low level, transmit weak current to described infraluminescence pipe (1) simultaneously, control described infraluminescence pipe (1) transmitting micropower infrared signal.
4. according to a kind of photoelectric pen described in claim 1 or 2 or 3, it is characterized in that, between described nib (9) and described body (8), expansion link (11) is set.
5. according to a kind of photoelectric pen described in claim 1 or 2 or 3, it is characterized in that, the top of described nib (9) arranges a perforate, and the position of described perforate is corresponding with the position of described light sensor (3).
6. according to a kind of photoelectric pen described in claim 1 or 2 or 3, it is characterized in that, the shell of described nib (9) is light transmissive material.
7. an electric whiteboard system, comprise computing machine, demonstration and writing device, photoelectric pen and receiving and processing device, described computing machine is electrically connected with described demonstration and writing device, image signal transmission is to described demonstration and writing device, it is characterized in that, described photoelectric pen is the photoelectric pen described in claim 1 or 2 or 3, and its mode with non-physical contact writes, marks or call various software on described demonstration and writing device; Described receiving and processing device is the photosignal receiving and processing device based on photoelectronic imaging principle, the infrared wavelength of its imaging is identical with the infrared wavelength of described photoelectric pen, the Infrared High-Power signal that described receiving and processing device gathers the transmitting of described photoelectric pen show and writing device on the light spot image that forms, image information is converted to the location coordinate information of photoelectric pen, and described location coordinate information is fed back to described computing machine.
8. a kind of electric whiteboard system according to claim 7, is characterized in that, described demonstration and writing device comprise projector and writing device, and described writing device is soft writing device or rigid writing device.
9. a kind of electric whiteboard system according to claim 7, is characterized in that, described demonstration and writing device are flat panel TV.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310026048.5A CN103970298A (en) | 2013-01-24 | 2013-01-24 | Photovoltaic pen and electronic white board system comprising same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310026048.5A CN103970298A (en) | 2013-01-24 | 2013-01-24 | Photovoltaic pen and electronic white board system comprising same |
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| CN103970298A true CN103970298A (en) | 2014-08-06 |
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| CN201310026048.5A Pending CN103970298A (en) | 2013-01-24 | 2013-01-24 | Photovoltaic pen and electronic white board system comprising same |
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