CN104469078A - Interactive projection control method and system - Google Patents
Interactive projection control method and system Download PDFInfo
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- CN104469078A CN104469078A CN201410553954.5A CN201410553954A CN104469078A CN 104469078 A CN104469078 A CN 104469078A CN 201410553954 A CN201410553954 A CN 201410553954A CN 104469078 A CN104469078 A CN 104469078A
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- terminal
- view data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
- H04N1/00204—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a digital computer or a digital computer system, e.g. an internet server
- H04N1/00209—Transmitting or receiving image data, e.g. facsimile data, via a computer, e.g. using e-mail, a computer network, the internet, I-fax
- H04N1/00214—Transmitting or receiving image data, e.g. facsimile data, via a computer, e.g. using e-mail, a computer network, the internet, I-fax details of transmission
- H04N1/00217—Transmitting or receiving image data, e.g. facsimile data, via a computer, e.g. using e-mail, a computer network, the internet, I-fax details of transmission only involving computer data transmission protocols, e.g. SMTP, WAP or HTTP
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
- H04N1/00249—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a photographic apparatus, e.g. a photographic printer or a projector
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computing Systems (AREA)
- Controls And Circuits For Display Device (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides an interactive projection control method and system. The method comprises the first step of obtaining a first terminal identifier, wherein a first terminal corresponding to the first terminal identifier establishes two-way communication with a projector in a wireless connection mode and is used for receiving image data sent by the projector, the second step of sending first image data to the first terminal through a wireless network, and the third step of receiving second image data obtained after the first terminal modifies the first image data through the wireless network and projecting the second image data. By the adoption of the interactive projection control method and system, interactive operation between the projector and the terminal is facilitated.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of interaction control method and system.
Background technology
Projector's scope of application is more and more extensive, but current projector is mainly to show image, the picture can with the equipment that projector connects synchronously shared projector and play.Such as, in multi-media classroom, the PowerPoint made in advance is shown by projector by teacher, and student can share to the teaching picture in projector by computer.
Traditional projecting method, what projector and the equipment be connected were set up is one-way communication, and equipment is only used for showing the image in projector, can not carry out interaction between projector and the equipment be connected.Such as teacher finds that certain student has write one section of good article, or have novelty very much when answering a certain road exercise question, teacher wants to be shared with everybody by projector, traditional method records by taking pictures or scanning, then computer is input into by data wire, shown in projector by operating computer, whole process operation is very loaded down with trivial details again, needs to consume a large amount of time.
Summary of the invention
Based on this, be necessary for above-mentioned technical problem, providing a kind of can carry out interactive interaction control method and system with projector.
A kind of interaction control method, described method comprises:
Acquisition first terminal identifies, and the first terminal that described first terminal mark is corresponding and projector set up two-way communication by wireless connections, and for receiving the view data that projector sends;
First view data is sent to described first terminal by wireless network;
Received the second view data obtained after described first terminal is modified to described first view data by wireless network, and described second view data is projected.
Wherein in an embodiment, the step of described acquisition first terminal mark, comprising:
Show and set up icon corresponding to the terminal of two-way communication with projector by wireless connections;
Receive user choose icon trigger choose instruction, according to described choose instruction obtain described icon corresponding first terminal mark.
Wherein in an embodiment, the described step first view data being sent to described first terminal by wireless network, comprising:
Obtain the first view data;
Whether the network address corresponding by first terminal will allow the request receiving view data to be sent to first terminal;
When receiving the message of first terminal feedback reception view data, by the described network address, described first view data is sent to first terminal.
Wherein in an embodiment, after the step projected to described second view data, described method also comprises:
Store described second view data;
After receiving the data download request of the second terminal transmission corresponding to the second terminal iidentification, amendment result is sent to described second terminal, and described second terminal and described projector set up two-way communication by wireless connections.
Wherein in an embodiment, described wireless connections comprise at least one in Wifi, bluetooth, NFC and Zigbee.
A kind of interaction control system, described system comprises:
Identifier acquisition module, for obtaining first terminal mark, the first terminal that described first terminal mark is corresponding and projector set up two-way communication by wireless connections, and for receiving the view data that projector sends;
First data transmission blocks, for being sent to described first terminal by the first view data by wireless network;
Second data projection module, for being received the second view data obtained after described first terminal is modified to described first view data by wireless network, and is projected to described second view data.
Wherein in an embodiment, described identifier acquisition module comprises:
Icon shows module, sets up icon corresponding to the terminal of two-way communication with projector by wireless connections for showing;
Module is chosen in instruction, for receive user choose icon trigger choose instruction, according to described choose instruction obtain described icon corresponding first terminal mark.
Wherein in an embodiment, the first data transmission blocks comprises:
First data acquisition module, for obtaining the first view data;
Whether request of data sending module, will allow the request receiving view data to be sent to first terminal for the network address corresponding by first terminal;
View data sending module, for when receiving the message of first terminal feedback reception view data, is sent to first terminal by the described network address by described first view data.
Wherein in an embodiment, described system also comprises:
Data memory module, for storing described second view data;
Second data transmission blocks, for receive the second terminal iidentification corresponding second terminal send data download request after, the second view data is sent to described second terminal, and described second terminal and described projector set up two-way communication by wireless connections.
Wherein in an embodiment, described wireless connections comprise at least one in Wifi, bluetooth, NFC and Zigbee.
Above-mentioned interaction control method and system, be sent to the first terminal being set up two-way communication with projector by wireless connections by the first view data, and the second view data returned after being modified to view data by first terminal projects.Compare the one-way communication between conventional projectors and terminal, the present invention can set up the two-way communication between projector and terminal, makes terminal and projector can transmit image data mutually, facilitates the interactive operation between projector and terminal.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of interaction control method in an embodiment;
Fig. 2 is the schematic flow sheet in an embodiment, the first view data being sent to first terminal step by wireless network;
Fig. 3 is the application scenarios figure of interaction control method in an embodiment;
Fig. 4 is to the procedure for displaying figure that the first view data is modified in Fig. 3 application scenarios;
Fig. 5 is the structural representation of interaction control system in an embodiment;
Fig. 6 is the structural representation of identifier acquisition module in an embodiment;
Fig. 7 is the structural representation of the first data transmission blocks in an embodiment;
Fig. 8 is the structural representation of interaction control system in another embodiment.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, in one embodiment, provide a kind of interaction control method, the method comprises:
Step 102, obtains first terminal mark.
In the present embodiment, the first terminal that first terminal mark is corresponding and projector set up two-way communication by wireless connections, and for receiving the view data that projector sends.First terminal comprises but is limited to desktop computer, smart mobile phone, personal digital assistant and panel computer etc.By installing the communication software with projector in first terminal, in same local area network (LAN), first terminal sets up wireless connections by the mixed-media network modules mixed-media of projector.Concrete, wireless connections include but not limited at least one in Wifi, bluetooth, NFC and Zigbee.Compare wired connection, wireless connections can save loaded down with trivial details wiring, cost-saving.
First terminal is designated terminal number corresponding to first terminal or the network address corresponding to first terminal.Terminal sets up two-way communication by the communication module of projector and projector, and the vision signal of projection is sent to terminal by projector, makes projector show projected image with the terminal synchronizes be connected.In the present embodiment, when projector needs to send the first view data to specific terminal, first determine the first terminal mark of reception first view data.
In one embodiment, step 102, obtains first terminal mark and comprises: show and set up icon corresponding to the terminal of two-way communication with projector by wireless connections; Receive user choose icon trigger choose instruction, according to choose instruction obtain icon corresponding first terminal mark.In the present embodiment, the icon of the terminal iidentification corresponding with the terminal of projector built vertical wireless connections is presented on the display screen of projector in the form of a list.Such as, in multi-media classroom, the seat numbering icon of Student computer in classroom of wireless connections is set up in projector's display with it, and teacher clicks seat numbering by mouse and determines corresponding Student computer.
Step 104, is sent to first terminal by the first view data by wireless network.
In the present embodiment, the first view data comes from the memory in projector, or comes from the data server in the corresponding local area network (LAN) of wireless network.Before transmission first view data, receiving the time of the first view data to reduce first terminal, in advance compression process being carried out to the first view data, to reduce the size of the first view data, improve the efficiency of transmission of view data.
Step 106, is received the second view data obtained after first terminal is modified to the first view data, and projects to the second view data by wireless network.
In the present embodiment, first terminal is modified to the first view data, and the image processing function provided by image processing software in first terminal is modified to the first view data.Specifically comprise: by image processing software, the first view data marked, edit and the operation such as image mosaic and image covering, further, the second view data that preservation amendment result obtains is returned to projector.Second view data is displayed by projection screen by projector.By projection screen, the user of other terminal can clearly see that first terminal is to the amended result of the first view data.
Above-mentioned interaction control method, is sent to the first terminal being set up two-way communication with projector by wireless connections by the first view data, and the second view data returned after being modified to view data by first terminal projects.Compare the one-way communication between conventional projectors and terminal, the present invention can set up the two-way communication between projector and terminal, makes terminal and projector can transmit image data mutually, facilitates the interactive operation between projector and terminal.
As shown in Figure 2, in one embodiment, the first view data is sent to first terminal by wireless network and comprises by step 104:
Step 202, obtains the first view data.
Step 204, whether the network address corresponding by first terminal will allow the request receiving view data to be sent to first terminal.
Step 206, when receiving the message of first terminal feedback reception view data, is sent to first terminal by the network address by the first view data.
In the present embodiment, the terminal setting up wireless connections with projector is all assigned unique network address (IP address), and first terminal is communicated by identical communication protocol with projector, and such as, communication protocol is Transmission Control Protocol.Before transmission first view data, whether projector first sends and allows the request message of reception first view data to first terminal, ejection allow by the display screen of first terminal user select to receive the prompting frame that " whether is " of view data, when receiving user and selecting to be, the first view data is transferred to first terminal by the network address by projector.
In one embodiment, a kind of projection display control method provided also comprises the steps: storage second view data; After receiving the data download request of the second terminal transmission corresponding to the second terminal iidentification, amendment result is sent to the second terminal.
In the present embodiment, the second terminal and projector set up two-way communication by wireless connections.The memory of projector and/or data server are by preservation second view data.The user that second terminal iidentification is corresponding wants to obtain the second view data in first terminal, can send data download request to projector, and the second view data stored is sent to the second corresponding terminal by projector.Terminal also can initiatively by files passe in memory and/or data server, each terminal carries out image data transmission each other by projector, makes different terminals to carry out interaction, facilitates the data sharing between user.
Below in conjunction with an application scenarios, lower technical scheme of the present invention is described, Fig. 3 is that the application scenarios figure in a multi-media classroom comprises: projector 30, Student computer 32, Student computer 34 and Student computer 36.Wherein, Student computer 32,34 and 36 sets up two-way communication with projector by wireless connections in local area network (LAN).First view data of the mathematical problem of solving an equation can be selected to send to Student computer 32 by teacher, Fig. 4 is the first view data of display on Student computer 32, image comprises problem display area 40 and answer region 42, then student can take answer by foul papers solves equation on the desktop of oneself, and by the answer taken through image software process, answer is covered answer region carry out preservation obtain amendment after the second view data 44, then the second view data is sent to projector 30.Also directly edit in answer district by image processing software.Second view data is illustrated on projection screen by projector 30.Facilitate teacher towards the answer process of all this problems of students ' analysis.If Student computer 34 wants download second view data, download request can be sent to projector, by the second image data download to local disk.
As shown in Figure 5, in one embodiment, provide a kind of interaction control system, this system comprises as lower module:
Identifier acquisition module 50, for obtaining first terminal mark.In the present embodiment, the first terminal that first terminal mark is corresponding and projector set up two-way communication by wireless connections, and for receiving the view data that projector sends.Wireless connections include but not limited at least one in Wifi, bluetooth, NFC and Zigbee.
First data transmission blocks 52, for being sent to first terminal by the first view data by wireless network.
Second data projection module 54, for being received the second view data obtained after first terminal is modified to the first view data by wireless network, and is projected to the second view data.
As shown in Figure 6, in one embodiment, identifier acquisition module 50 comprises:
Icon shows module 502, sets up icon corresponding to the terminal of two-way communication with projector by wireless connections for showing.
Module 504 is chosen in instruction, for receive user choose icon trigger choose instruction, according to choose instruction obtain icon corresponding first terminal mark.
As shown in Figure 6, in one embodiment, the first data transmission blocks 52 comprises:
First data acquisition module 522, for obtaining the first view data.
Whether request of data sending module 524, will allow the request receiving view data to be sent to first terminal for the network address corresponding by first terminal.
View data sending module 526, for when receiving the message of first terminal feedback reception view data, is sent to first terminal by the network address by the first view data.
As shown in Figure 8, in another embodiment, the interaction control system provided also comprises:
Data memory module 56, for storing the second view data.
Second data transmission blocks 58, for receive the second terminal iidentification corresponding second terminal send data download request after, the second view data is sent to the second terminal.In the present embodiment, the second terminal and projector set up two-way communication by wireless connections.
Above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. an interaction control method, described method comprises:
Acquisition first terminal identifies, and the first terminal that described first terminal mark is corresponding and projector set up two-way communication by wireless connections, and for receiving the view data that projector sends;
First view data is sent to described first terminal by wireless network;
Received the second view data obtained after described first terminal is modified to described first view data by wireless network, and described second view data is projected.
2. method according to claim 1, the step of described acquisition first terminal mark, comprising:
Show and set up icon corresponding to the terminal of two-way communication with projector by wireless connections;
Receive user choose icon trigger choose instruction, according to described choose instruction obtain described icon corresponding first terminal mark.
3. want the method described in 1 according to right, it is characterized in that, the described step first view data being sent to described first terminal by wireless network, comprising:
Obtain the first view data;
Whether the network address corresponding by first terminal will allow the request receiving view data to be sent to first terminal;
When receiving the message of first terminal feedback reception view data, by the described network address, described first view data is sent to first terminal.
4. method according to claim 1, is characterized in that, after the step projected to described second view data, described method also comprises:
Store described second view data;
After receiving the data download request of the second terminal transmission corresponding to the second terminal iidentification, amendment result is sent to described second terminal, and described second terminal and described projector set up two-way communication by wireless connections.
5. the method according to any one of Claims 1-4, is characterized in that, described wireless connections comprise at least one in Wifi, bluetooth, NFC and Zigbee.
6. an interaction control system, is characterized in that, described system comprises:
Identifier acquisition module, for obtaining first terminal mark, the first terminal that described first terminal mark is corresponding and projector set up two-way communication by wireless connections, and for receiving the view data that projector sends;
First data transmission blocks, for being sent to described first terminal by the first view data by wireless network;
Second data projection module, for being received the second view data obtained after described first terminal is modified to described first view data by wireless network, and is projected to described second view data.
7. system according to claim 6, described identifier acquisition module comprises:
Icon shows module, sets up icon corresponding to the terminal of two-way communication with projector by wireless connections for showing;
Module is chosen in instruction, for receive user choose icon trigger choose instruction, according to described choose instruction obtain described icon corresponding first terminal mark.
8. want the system described in 6 according to right, it is characterized in that, the first data transmission blocks comprises:
First data acquisition module, for obtaining the first view data;
Whether request of data sending module, will allow the request receiving view data to be sent to first terminal for the network address corresponding by first terminal;
View data sending module, for when receiving the message of first terminal feedback reception view data, is sent to first terminal by the described network address by described first view data.
9. system according to claim 6, is characterized in that, described system also comprises:
Data memory module, for storing described second view data;
Second data transmission blocks, for receive the second terminal iidentification corresponding second terminal send data download request after, the second view data is sent to described second terminal, and described second terminal and described projector set up two-way communication by wireless connections.
10. the system according to any one of claim 6 to 9, is characterized in that, described wireless connections comprise at least one in Wifi, bluetooth, NFC and Zigbee.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410553954.5A CN104469078A (en) | 2014-10-17 | 2014-10-17 | Interactive projection control method and system |
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| CN201410553954.5A CN104469078A (en) | 2014-10-17 | 2014-10-17 | Interactive projection control method and system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106506473A (en) * | 2016-10-31 | 2017-03-15 | 努比亚技术有限公司 | A kind of information processing method and projection terminal |
| CN106791750A (en) * | 2017-02-10 | 2017-05-31 | 联想(北京)有限公司 | A kind of projecting method and projection arrangement |
| CN107124601A (en) * | 2017-06-29 | 2017-09-01 | 深圳市沃特沃德股份有限公司 | Projecting apparatus and projecting method |
| CN108092966A (en) * | 2017-12-11 | 2018-05-29 | 北京小米移动软件有限公司 | Project content transmission method, device, readable storage medium storing program for executing and projector equipment |
| CN108402696A (en) * | 2018-03-18 | 2018-08-17 | 张杭湖 | A kind of teaching desk based on big data |
| CN113760213A (en) * | 2021-09-08 | 2021-12-07 | 联想(北京)有限公司 | Screen projection method and system and electronic equipment |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1550996A (en) * | 2003-03-24 | 2004-12-01 | ������������ʽ���� | Image-display system and method, image-display program, projector and projector-control method, and projector-control program |
| CN101140407A (en) * | 2006-09-06 | 2008-03-12 | 冲电气工业株式会社 | Projector, terminal and image communication system |
| US20100312413A1 (en) * | 2009-06-04 | 2010-12-09 | Viewsonic Corporation | Advanced wireless projector presentation system with network management control |
| CN102209080A (en) * | 2010-03-30 | 2011-10-05 | 刘盛举 | Terminal system for synchronous teaching or conferences and control method thereof |
| CN102810265A (en) * | 2012-05-16 | 2012-12-05 | 深圳图瑞交互信息技术有限公司 | Information interaction system and information interaction method |
| CN103297416A (en) * | 2012-02-27 | 2013-09-11 | 三星电子株式会社 | Method and apparatus for two-way communication |
| CN103458221A (en) * | 2012-06-04 | 2013-12-18 | 爱国者数码科技有限公司 | Meeting system with projector serving as meeting terminal device |
| CN104106037A (en) * | 2012-02-13 | 2014-10-15 | 日立麦克赛尔株式会社 | Projector, graphical input/display device, portable terminal and program |
-
2014
- 2014-10-17 CN CN201410553954.5A patent/CN104469078A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1550996A (en) * | 2003-03-24 | 2004-12-01 | ������������ʽ���� | Image-display system and method, image-display program, projector and projector-control method, and projector-control program |
| CN101140407A (en) * | 2006-09-06 | 2008-03-12 | 冲电气工业株式会社 | Projector, terminal and image communication system |
| US20100312413A1 (en) * | 2009-06-04 | 2010-12-09 | Viewsonic Corporation | Advanced wireless projector presentation system with network management control |
| CN102209080A (en) * | 2010-03-30 | 2011-10-05 | 刘盛举 | Terminal system for synchronous teaching or conferences and control method thereof |
| CN104106037A (en) * | 2012-02-13 | 2014-10-15 | 日立麦克赛尔株式会社 | Projector, graphical input/display device, portable terminal and program |
| CN103297416A (en) * | 2012-02-27 | 2013-09-11 | 三星电子株式会社 | Method and apparatus for two-way communication |
| CN102810265A (en) * | 2012-05-16 | 2012-12-05 | 深圳图瑞交互信息技术有限公司 | Information interaction system and information interaction method |
| CN103458221A (en) * | 2012-06-04 | 2013-12-18 | 爱国者数码科技有限公司 | Meeting system with projector serving as meeting terminal device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106506473A (en) * | 2016-10-31 | 2017-03-15 | 努比亚技术有限公司 | A kind of information processing method and projection terminal |
| CN106791750A (en) * | 2017-02-10 | 2017-05-31 | 联想(北京)有限公司 | A kind of projecting method and projection arrangement |
| CN107124601A (en) * | 2017-06-29 | 2017-09-01 | 深圳市沃特沃德股份有限公司 | Projecting apparatus and projecting method |
| CN107124601B (en) * | 2017-06-29 | 2020-06-05 | 深圳市沃特沃德股份有限公司 | Projector and projection method |
| CN108092966A (en) * | 2017-12-11 | 2018-05-29 | 北京小米移动软件有限公司 | Project content transmission method, device, readable storage medium storing program for executing and projector equipment |
| CN108402696A (en) * | 2018-03-18 | 2018-08-17 | 张杭湖 | A kind of teaching desk based on big data |
| CN113760213A (en) * | 2021-09-08 | 2021-12-07 | 联想(北京)有限公司 | Screen projection method and system and electronic equipment |
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