CN101493636A - Interactive projecting system and interactive input method thereof - Google Patents
Interactive projecting system and interactive input method thereof Download PDFInfo
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- CN101493636A CN101493636A CNA2008102413889A CN200810241388A CN101493636A CN 101493636 A CN101493636 A CN 101493636A CN A2008102413889 A CNA2008102413889 A CN A2008102413889A CN 200810241388 A CN200810241388 A CN 200810241388A CN 101493636 A CN101493636 A CN 101493636A
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Abstract
The invention provides an interactive projection system and an interactive input method thereof; the interactive projection system comprises a projection unit, an interactive information input unit which is used for inputting information on the display output of the projection unit, an interactive information unit which comprises an interactive information collecting module and an interactive information transmission module, and a processing unit which comprises a video processing output module, a video signal input module and an interactive information processing module; the video signal input module is used for receiving the video signal input by the external video input equipment; the interactive information processing module is used for processing the interactive information transmitted by the interactive information transmission module; and the video processing output module is used for comprehensively processing the information coming from the video signal input module and the interactive information processing module and outputting corresponding video signal so as to drive the projection unit to carry out the projection display. The interactive projection system and the interactive input method have the advantages that the interactive input is realized at low cost on the basis of the existing projection equipment.
Description
Technical field
The present invention relates to a kind of interactive projection system and interactive input method thereof.
Background technology
Now, along with the continuous development of display technique, teaching field equipment has also had very big renewal.For example, the classroom of adopting computing machine to add projector gets more and more, and promptly drives the corresponding image of projection output module projection by arithmetic facilities such as computing machines and shows to projection screen.The application of multimedia courseware has reduced teacher's difficulty of teaching, and has improved student's learning efficiency.The form that multimedia is given lessons and adopted teachers to show multimedia courseware more, teacher makes multimedia courseware in advance, and the form with lantern slide on the classroom is shown.Because the changeableness of teaching field condition and sudden, the courseware that teachers prepare often can't relate to the problem that is occurred.Such as the constructive problem of the interim proposition of students' union, the teacher also wishes the solution of this problem or problem is published in answer.
In practical operation, teachers no doubt can finish corresponding modification such as input mediums such as writing input boards by keyboard, mouse or other.But, but have a long way to go with input equipments such as mouse annotations and comments of writing and the annotations and comments of drawing with hand because people's writing style for a long time is more prone to directly write written instructions on picture.When some problems of solution, writing on the blackboard is easier to read when externally showing in addition.And these require all be existing keyboard and mouse can not provide.
Obviously, existing projector equipment can not substitute traditional teacher's devices of expressing own thought directly perceived such as blackboard fully.Instructors during such as mathematical derivation, more gets used to writing derivation solving some than challenge on blackboard.
But, adopt projector or other projection arrangement usually to need projection screen supporting with it, and projection screen can take the space of original blackboard.Influenced the carrying out of teaching so on the contrary, proposed strict restriction and requirement to teaching environment.Certainly.The teacher can be by packing up the mode of projection screen, the blackboard area that uses projected picture to take, but this can not show multimedia courseware again simultaneously.
And present demoware as POWER POINT and WPS demonstration, all adopts the form of page turning to demonstrate, and this and people read the reading habit that page reads the other end from an end discrepancy.For example, the position of demonstration page or leaf is fixing on screen, and the teacher is if want just to have to rely on new page or use animation being received within screen center's demonstration in a certain position on the screen, and this also need the teacher will the more time flower on presentation file is made.
Summary of the invention
Technical matters to be solved by this invention provides a kind of on the basis of existing projector equipment, realizes the interactive projection system and the interactive input method thereof of interactive input at lower cost.
The objective of the invention is to be achieved through the following technical solutions:
A kind of interactive projection system comprises: projecting cell;
The interactive information input block is used for carrying out the information input in the demonstration output of described projecting cell;
The interactive information unit comprises: interactive information acquisition module and interactive information transport module; Described interactive information acquisition module is gathered the movable information of described interactive information input block, and is sent to described interactive information transport module;
Processing unit comprises: Video processing output module, video signal input module and interactive information processing module; Described video signal input module is used to receive the vision signal of external video input equipment input; Described interactive information processing module is used to handle the interactive information that described interactive information transport module sends; Described Video processing output module is used for the information that overall treatment comes from described video signal input module and interactive information processing module, and the output corresponding video signals drives described projecting cell and carries out Projection Display.
By described interactive projection system, only at existing projector equipment, promptly increase corresponding device thereof on the projecting cell, just can realize user's interactive mode input.Concrete mode is the user as long as pass through the interactive information input block at the enterprising line operate of the projection screen of described projecting cell, comprises action and order input etc., then can show corresponding the operation in this projection screen, realizes the function of interactive input.And, short to the time that information processing spent because the performance of electronic operation equipment is more and more higher now by information acquisition, therefore should the interactive mode input have good real-time.
As an embodiment of interactive projection system of the present invention, described interactive information input block has specific optical information, for example sends specific light or has specific shape, color etc.; Described interactive information acquisition module adopts optic position sensor, is used to obtain the action message of described interactive information input block, and is sent to described interactive information transport module with the form of corresponding electric signal.
Obviously, described optic position sensor selects to adopt COMS imageing sensor, ccd image sensor or position sensitive detector to obtain corresponding position electric signal, to realize obtaining described interactive information input block corresponding action information.
In order to prevent that object from blocking the influence of described optic position sensor being obtained described interactive information input block corresponding action information, described optic position sensor is arranged at least two different places, obtain the action message of described interactive information input block respectively, and be sent to described interactive information transport module with the form of corresponding electric signal.Certainly, also can adopt the mode of special light path design, overcome the problems referred to above, for example, obtain the picture of described interactive information input block, and adopt light path design to make different pictures all be obtained by described optic position sensor at diverse location.
Import corresponding order for the ease of the user, described interactive information input block comprises: force transducer and command input unit; Described force transducer is used for the suffered power of described interactive information input block is converted into corresponding electric signal, and is sent to described interactive information processing module and handles; Described command input unit is used for that the operational order information of user's input is sent to described interactive information processing module to be handled.
Correspondingly, described interactive information input block comprises: be used for the wireless signal transceiver that carries out the wireless type message exchange with described interactive information processing module.Certainly, described interactive information input block of the present invention also can adopt the mode of wired connection and described interactive information processing module to carry out message exchange.The user can directly operate on the picture of projection screen with described interactive information input block, finishes and the mouse identical functions, comprises operations such as right and left key is distinguished, single hit and dblclick is judged, cursor drags.
Different with the foregoing description, described interactive information input block of the present invention also can be set at user's finger certainly.But described optic position sensor still can also just obtain its action message according to its positional information of specific picture catching of user's finger.Interactive projection system of the present invention can be when carrying out analyzing and processing to this action message, assert that specific action represents user's specific order.For example, finger is at the picture of the projection screen paddling that makes progress, and expression user input is carried out movement directive upwards to the picture of projection screen.
In above-mentioned two kinds of embodiments, the user also can write on the picture of projection screen with described interactive information input block, and then picture demonstrates the demonstration track consistent with its person's handwriting, and this display delayed that shows track is very little, has real-time.Even can be by corresponding order input, this demonstration track can have different colors and different line weights.
For the ease of its interactive information of being imported of user storage, described interactive information transport module comprises: the interactive information storage unit that is used to store the interactive information that is produced by described interactive information input block.Like this, interactive information just can be selected to preserve separately or directly be stored in the file of video playback, and it is preserved form and also can be selected by the user.
Adopt the interactive input method of described interactive projection system, comprise the steps:
The interactive information input block carries out the information input in the demonstration output of described projecting cell;
Described interactive information acquisition module is gathered the interactive information of described interactive information input block input, and is sent to described interactive information transport module;
Described video signal input module receives the vision signal of external video input equipment input; Described interactive information processing module is handled the interactive information that described interactive information transport module sends;
A, the overall treatment of described Video processing output module come from the signal of described video signal input module and interactive information processing module, and the output corresponding video signals drives described projecting cell and carries out Projection Display.
In an embodiment specifically, the interactive information of being handled by described interactive information processing module comprises: the movable information of described interactive information unit and user are by the operational order information of described interactive information input block input.
Described operational order information comprises, to the moving of picture, convergent-divergent, page turning and storage.
Described steps A comprises the steps:
In the vision signal that described video signal input module is imported, add the movable information that shows described interactive information unit;
Handle accordingly according to the vision signal that the user is imported described video signal input module by the operational order information of described interactive information input block input.
Described operational order information comprises: to the shown picture of projection screen move, convergent-divergent, page turning and storage.
Compared with prior art the invention has the advantages that, on the basis of existing projector equipment, realize interactive input at lower cost.
Description of drawings
Fig. 1 is the theory diagram of interactive projection system embodiment of the present invention;
Fig. 2 is the hardware block diagram of interactive projection system embodiment of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing and preferred embodiment.
As shown in Figure 1, interactive projection system comprises: projecting cell 200, interactive information input block 400, interactive information unit 300 and processing unit 100.
Wherein, interactive information input block 400 is used for carrying out the information input in the demonstration output of described projecting cell 200.
Interactive information unit 300 comprises: interactive information acquisition module 310 and interactive information transport module 320.Described interactive information acquisition module 310 is gathered the movable information of described interactive information input block 400, and is sent to described interactive information transport module 320.
Processing unit 100 comprises: Video processing output module 110, video signal input module 130 and interactive information processing module 120; Described video signal input module 130 is used to receive the vision signal of external video input equipment input; Described interactive information processing module 120 is used to handle the interactive information that described interactive information transport module 320 sends; Described Video processing output module 110 is used for the information that overall treatment comes from described video signal input module 130 and interactive information processing module 120, and the output corresponding video signals drives described projecting cell 200 and carries out Projection Display.
As shown in Figure 2, projecting cell 200 comprises projection screen 210 and projection output module 220.Described projection output module 220 is driven by Video processing output module 110, and the output projected picture is to described projection screen 210.
Described interactive information input block 400 is by the input equipment of the form of a stroke or a combination of strokes of user's handling, comprises force transducer and command input unit.Described force transducer is used for described interactive information input block 400 suffered power are converted into corresponding electric signal, and is sent to described interactive information processing module 120 and handles; Described command input unit is used for that the operational order information of user's input is sent to described interactive information processing module 120 to be handled.Described interactive information input block 400 can perhaps have modes such as specific color or shape by sending specific light, makes self can be come out by optic position sensor 330 identifications.
Wherein, optic position sensor 330 can combine with described projection output module 220 on hardware configuration.
Processing unit 100 can adopt disposal systems such as computing machine microcomputer or embedded computer at hardware.This can set up function corresponding by the mode of software on this processing unit 100.
Obviously, on the basis of the foregoing description, described interactive projection system can be realized interactive input on the basis of existing projecting cell.
As other embodiment of the present invention, projecting cell and interactive information unit 300 are separated from each other on hardware, only be for the interactive mode input provides a platform and makes corresponding demonstration, and the information processing function are finished by processing unit 100.
The user uses described interactive information input block 400 to draw at the face of projection screen 210 and operation such as writes, and for example the teacher can realize the function of writing on the blackboard.
Certainly, because processing unit 100 can be expanded other Interactive functions by the mode that computer hardware adds software.
For example, interactive information module 300 is obtained the operation of user for the picture of projection screen 210, and with the interactive information of this operation through sending processing unit 100 scheme of dealing with after the rough handling to.Owing to introduced this platform of computer, the present invention can finish more function, and for example the teacher can write at showing multimedia courseware by computer, and demonstrate its person's handwriting synchronously in teaching.In addition except that showing in real time that on projected picture the present invention can also preserve teacher's content written teacher's the person's handwriting.Concrete mode can be: the teacher write finish after, selection is to wipe, or institute's content written is preserved.When preserving written contents, also can determine it is to preserve person's handwriting, also can be literal or figure after the treated software identification.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1, a kind of interactive projection system comprises: projecting cell (200); It is characterized in that, also comprise:
Interactive information input block (400) is used for carrying out the information input in the demonstration output of described projecting cell (200);
Interactive information unit (300) comprising: interactive information acquisition module (310) and interactive information transport module (320); Described interactive information acquisition module (310) is gathered the movable information of described interactive information input block (400), and is sent to described interactive information transport module (320); And
Processing unit (100) comprising: Video processing output module (110), video signal input module (130) and interactive information processing module (120); Described video signal input module (130) is used to receive the vision signal of external video input equipment input; Described interactive information processing module (120) is used to handle the interactive information that described interactive information transport module (320) sends; Described Video processing output module (110) is used for the information that overall treatment comes from described video signal input module (130) and interactive information processing module (120), and the output corresponding video signals drives described projecting cell (200) and carries out Projection Display.
2, interactive projection system according to claim 1 is characterized in that, described interactive information input block (400) has specific optical information; Described interactive information acquisition module (310) adopts optic position sensor (330), is used to obtain the action message of described interactive information input block (400), and is sent to described interactive information transport module (320) with the form of corresponding electric signal.
3, interactive projection system according to claim 2, it is characterized in that, described optic position sensor (330) is arranged at least two different places, obtain the action message of described interactive information input block (400) respectively, and be sent to described interactive information transport module (320) with the form of corresponding electric signal.
4, interactive projection system according to claim 2 is characterized in that, described interactive information input block (400) comprising: force transducer and command input unit; Described force transducer is used for the suffered power of described interactive information input block (400) is converted into corresponding electric signal, and is sent to described interactive information processing module (120) and handles; Described command input unit is used for that the operational order information of user's input is sent to described interactive information processing module (120) to be handled.
5, interactive projection system according to claim 4 is characterized in that, described interactive information input block (400) comprising: be used for the wireless signal transceiver that carries out the wireless type message exchange with described interactive information processing module (120).
6, interactive projection system according to claim 4 is characterized in that, described interactive information transport module (320) comprising: be used for the interactive information storage unit of storage by the interactive information of described interactive information input block (400) generation.
7, employing is characterized in that as the interactive input method of the described interactive projection system of arbitrary claim in the claim 1 to 6, comprises the steps:
Interactive information input block (400) carries out the information input in the demonstration output of described projecting cell (200);
Described interactive information acquisition module (310) is gathered the interactive information of described interactive information input block (400) input, and is sent to described interactive information transport module (320);
Described video signal input module (130) receives the vision signal of external video input equipment input; Described interactive information processing module (120) is handled the interactive information that described interactive information transport module (320) sends;
A, described Video processing output module (110) overall treatment come from the signal of described video signal input module (130) and interactive information processing module (120), and the output corresponding video signals drives described projecting cell (200) and carries out Projection Display.
8, interactive input method according to claim 7, it is characterized in that, the interactive information of being handled by described interactive information processing module (120) comprises: the movable information of described interactive information unit (300) and user are by the operational order information of described interactive information input block (400) input.
9, interactive input method according to claim 8 is characterized in that, described steps A comprises the steps:
In the vision signal that described video signal input module (130) is imported, add the movable information that shows described interactive information unit (300);
Handle accordingly according to the vision signal that the user is imported described video signal input module (130) by the operational order information of described interactive information input block (400) input.
10, interactive input method according to claim 8 is characterized in that, described operational order information comprises: to the shown picture of projection screen (210) move, convergent-divergent, page turning and storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102413889A CN101493636A (en) | 2008-12-22 | 2008-12-22 | Interactive projecting system and interactive input method thereof |
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| CNA2008102413889A CN101493636A (en) | 2008-12-22 | 2008-12-22 | Interactive projecting system and interactive input method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901108A (en) * | 2010-07-02 | 2010-12-01 | 东莞市日新传导科技股份有限公司 | Interactive input method and projection equipment |
| CN101923406A (en) * | 2010-07-29 | 2010-12-22 | 信佳数码科技有限公司 | Interactive projection system and method |
| CN105204752A (en) * | 2014-06-04 | 2015-12-30 | 北京大学深圳研究生院 | Method and system for achieving interaction in projection type reading |
| CN108965840A (en) * | 2018-08-02 | 2018-12-07 | 原点显示（深圳）科技有限公司 | The interactive projector at Freely input end |
-
2008
- 2008-12-22 CN CNA2008102413889A patent/CN101493636A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901108A (en) * | 2010-07-02 | 2010-12-01 | 东莞市日新传导科技股份有限公司 | Interactive input method and projection equipment |
| CN101923406A (en) * | 2010-07-29 | 2010-12-22 | 信佳数码科技有限公司 | Interactive projection system and method |
| CN105204752A (en) * | 2014-06-04 | 2015-12-30 | 北京大学深圳研究生院 | Method and system for achieving interaction in projection type reading |
| CN105204752B (en) * | 2014-06-04 | 2018-08-03 | 北京大学深圳研究生院 | Projection realizes interactive method and system in reading |
| CN108965840A (en) * | 2018-08-02 | 2018-12-07 | 原点显示（深圳）科技有限公司 | The interactive projector at Freely input end |
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Open date: 20090729 |