CN101272469A - Recording system and method used for teaching and meeting place - Google Patents
Recording system and method used for teaching and meeting place Download PDFInfo
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- CN101272469A CN101272469A CNA2007100736636A CN200710073663A CN101272469A CN 101272469 A CN101272469 A CN 101272469A CN A2007100736636 A CNA2007100736636 A CN A2007100736636A CN 200710073663 A CN200710073663 A CN 200710073663A CN 101272469 A CN101272469 A CN 101272469A
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Abstract
The invention relates to a recording system and a method which are used in teaching and venues. The system consists of a host which is connected with a video record device and an audio record device. The host consists of an audio input interface, a video input interface, a computer interface, a major control unit, a storage cell, a video source switching module and a slide processing module; wherein, the video source switching module matches the major control unit for switching the video source, the slide processing module is used for receiving and demonstrating slide signals in the computer, the major control unit processes the received audio signals, video signals and slide signals to produce multimedia files which consist of video contents and slide contents corresponding to time. The host can be externally connected with a demonstrating computer. A remote control can be used for controlling the recording process and the switching of the video source when in use. The recording process requires no coordination of a plurality of people, and editing processing is not required after the recording. A time corresponding relationship is established between the recorded video and the slide pictures.
Description
Technical field
The present invention relates to a kind of recording system and method, recording system and method in particular for teaching, lecture, meeting-place, more particularly, relate to a kind of display message that can extract demonstration computer that is connected with demonstration computer and lantern slide information, can select from demonstration computer or radio frequency recording device vision signal, when recording, synthesize, store and/or issue the recording system of (network direct broadcasting, program request, browse and inquire about), and corresponding method for recording.
Background technology
Video, audio frequency even the demo content at scenes such as teaching, lecture, meeting-place are recorded into multimedia file, help record, preservation data, convenient interested people understands, looks back related content.By the program request and the direct seeding technique of maturation, can easily issue the content of being recorded, allow more people understand, look back, inquire about the content of being recorded more easily.
For example, teacher's teaching process is recorded into multimedia file (courseware, teaching resource etc.), can help the student to learn by oneself easily, review and preview.By network and the VOD system popularized day by day, it is live etc. to carry out web-based teaching, remote teaching, classroom easily.Be transported to the outlying district after the high-quality course can also being made multimedia courseware, for contributing in the outlying district.
Record on-the-spot video, audio frequency even demo content etc. such as teaching, lecture, meeting-place, need record device (or system).Most of existing record device (or system) needs a plurality of people's cooperation in recording process, and needs to carry out artificial processed after recording.How low-cost, record on-the-spot video, audio frequency even demo content such as teaching, lecture, meeting-place and generate multimedia file easily, be a kind of expectation of people.In addition, for the screen display of recording Demo Computer, the movement locus of mouse etc., existing recording system all be with specific Demo Computer be associated together (for example, to record module is installed in the Demo Computer), the demonstrator can not use the computer demonstration of oneself easily, PowerPoint need be copied in this Demo Computer.In addition, set up index relative at video pictures of recording and the lantern slide picture of being demonstrated, video pictures and lantern slide information are checked in convenient contrast, also are academics and students's active demands.
Summary of the invention
The technical problem to be solved in the present invention is, need a plurality of people to cooperate, after recording, need to carry out artificial processed in the above-mentioned recording process at prior art, can not set up index relative, defective such as can not external other teaching computers record, a kind of recording system and method that is used to impart knowledge to students with the meeting-place is provided at video pictures of recording and the lantern slide of being demonstrated picture.
An aspect of of the present present invention, a kind of recording system that is used to impart knowledge to students with the meeting-place is provided, comprise the main frame that connects video recording device and audio frequency recording device, described main frame comprises audio input interface, video input interface, main control unit, memory cell, and described main frame also comprises:
Be used to connect the computer interface of demonstration computer;
Cooperate the video source handover module that is used to select from the vision signal of described video recording device or described demonstration computer with described main control unit;
Receive the lantern slide processing module of the lantern slide signal on the described demonstration computer by described computer interface;
Wherein, described main control unit is handled audio signal, vision signal and the lantern slide signal that is received, and generates multimedia file; The described multimedia file of described cell stores.
In recording system of the present invention, described main frame also comprises release module, and it is connected with described memory cell and is used to issue described multimedia file.
In recording system of the present invention, also comprise wireless signal transmitter and receiver, described receiver is connected with described main control unit, and described reflector is provided with and is used to start, suspends, stops to record and the button in Switch Video source.
In recording system of the present invention, also comprise with described main control unit cooperating the audio-source handover module that is used to select from the audio signal of different audio frequency recording devices; Described reflector also is provided with the button of switch audio sources.
In recording system of the present invention, described reflector is provided with and is used to control the button that lantern slide is play, and for example controls lantern slide and advances, retreats etc.
In recording system of the present invention, described reflector is provided with the laser pen button.
The present invention provides a kind of method for recording that is used to impart knowledge to students with the meeting-place on the other hand, may further comprise the steps: S1, received audio signal;
S2, receiving video signals;
S3, reception lantern slide signal;
Audio signal, vision signal and lantern slide signal that S4, processing are received generate multimedia file.
In teaching method for recording of the present invention, further comprise the vision signal of selective reception among the step S2 from video recording device or demonstration computer;
In teaching method for recording of the present invention: further comprise storage among the step S4 or issue described multimedia file.
In teaching method for recording of the present invention, described lantern slide signal comprises lantern slide picture and Word message thereof.
In teaching method for recording of the present invention, by wireless signal control recording process startup, suspend and stop, and the control selective reception is from the vision signal of video recording device or computer.
In teaching method for recording of the present invention, operate lantern slide in the described computer by wireless signal.
Compared with prior art, implement recording system of the present invention and method for recording, have following beneficial effect:
(1), recording system of the present invention can be external in demonstration computer, the convenient use;
(2), can be by remote control equipment Switch Video signal input sources and startup easily, suspend, stop to record, when recording, do not need a plurality of people to cooperate, need after recording, not carry out montage yet and handle;
(3) in recording process, based on the lantern slide that the timeline information storage demonstration computer of recorded video is demonstrated, between video pictures of recording and lantern slide, set up index relative, be convenient to contrast and check;
(4), in recording process, also extract the Word message of the lantern slide of demonstrating on the demonstration computer, and set up index relative according to the timeline information and the recorded video of recorded video, and can search the corresponding recording video pictures by the Word message of lantern slide, realize the search function of video recording content.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the schematic diagram of one embodiment of the present of invention;
Fig. 2 is the theory diagram of main frame 2 shown in Figure 1;
Fig. 3 is the method flow diagram of recording in one embodiment of the present of invention;
Fig. 4 issues the video of being recorded, the schematic diagram of lantern slide picture by network.
Embodiment
Fig. 1 is the recording system that uses in the one embodiment of the invention, and this recording system can be used for environment such as teaching, lecture, demonstration, meeting-place.In the embodiment shown in fig. 1, recording system comprises main frame 2, the video recording device 101 and 102 that is connected with main frame 2, demonstration computer 104, server 106, remote controller 108 and one or more audio frequency recording device.
In this embodiment, main frame 2 is independent functional units, can be external in computer.Main frame 2 can receive from video recording device 101,102 video information (for example, video recording device 101 is used to shoot with video-corder teacher, video recording device 102 is used to shoot with video-corder the student), signal (screen display from demonstration computer 104, mouse track, keyboard operation etc.), from the audio-frequency information that receives demonstration computer 104 and audio frequency recording device such as microphone, from the lantern slide information of demonstration computer 104 (lantern slide picture for example, word content, broadcast start time, lasting reproduction time etc.) and to these information handle, in video information, audio-frequency information, set up corresponding relation (for example settling time corresponding relation) between the lantern slide information.
Remote controller 108 is provided with the startup of control recording process, the button that suspends and stop, and also is provided with the button of selective reception from the vision signal of video recording device 101,102 or demonstration computer 104.In another embodiment, remote controller 108 also is provided with the button that is used to operate lantern slide, for example be provided with and play one page magic lantern down, return the page up lantern slide, withdraw from the button of lantern slide broadcast etc., be convenient to that user's control is recorded, Switch Video source, operation lantern slide.In another embodiment, remote controller 108 also has the laser pen function, can be used as the light teacher's pointer and uses.
Below 2 pairs of main frames 2 of index map are explained in detail.Fig. 2 is the theory diagram of main frame 2 shown in Figure 1.As shown in Figure 2, main frame 2 comprises audio input interface 201, video input interface 203, computer interface 205, video source handover module 207, lantern slide processing module 211, main control unit 209, memory cell 213 and release module 215.
Wherein, audio input interface 201 can receive the audio input signal of one or more audio frequency recording devices, Q﹠A on the classroom of the voice when for example receiving teacher and give lessons by microphone or audio frequency incoming line, student, the audio frequency output of demonstration computer 104 etc.
Video source handover module 207 is connected with video input interface 203, computer interface 205, and video source handover module 207 cooperates with main control unit 209, is used for the vision signal of selective reception from the different video recording device.For example, in one embodiment, at synchronization, main control unit 209 receives only the vision signal of 1 video source (for example certain video camera or computer).Video source handover module 207 can be connected with wireless signal receiver, and wireless signal receiver receives the control signal of remote controller 108, realizes the remote control that recording process, video source are switched.
Lantern slide processing module 211 cooperates with computer interface 205, the lantern slide information on the receiving computer, for example in progress lantern slide picture and Word message thereof.Described lantern slide can be made by the instruments such as Impress of the PowerPoint of Microsoft's office suite (Microsoft office), the office suite of increasing income (Open Office).This manuscript presentation tool all carries a lot of API (application programming interfaces), by these API, can monitor, catches or receive state, action, operating time, demonstration image content of PowerPoint etc. easily.Video source handover module 207 can be connected with wireless signal receiver, and wireless signal receiver receives the control signal of remote controller 108, thereby realizes that the remote control lantern slide plays, and for example the remote control lantern slide advances, retreats etc.
In one embodiment, main control unit 209 handle the vision signal that received (by video input interface 203 receive from the vision signal of video recording device or the shows signal that receives by computer interface from computer) and the audio signal that receives by audio input interface 201, described processing can be according to certain compression algorithm, agreements etc. are with the multimedia file of audio signal and the synthetic certain format of vision signal, for example according to mms, rtsp agreements etc. perhaps become the multimedia file of certain format with audio signal and vision signal resultant current multimedia file format according to the MPEG compression algorithm.Simultaneously, main control unit 209 also generates the timeline information of described multimedia file, is convenient to F.F., playback, selection broadcast of multimedia file etc.In addition, main control unit 209 also makes a mark to lantern slide picture and the Word message that lantern slide processing module 211 receives according to described timeline information, just between multimedia file of recording and lantern slide picture (and literal) settling time corresponding relation, be convenient to the contrast check.For example, suppose that certain lantern slide picture is to demonstrate at the 10th minute that begins to record, duration is 1 minute, so, when we check chapter 1 lantern slide picture, can directly check the content between the 10th minute to the 11st minute in the multimedia file of being recorded according to this corresponding time relationship; Otherwise, if in multimedia file certain time period just corresponding a lantern slide picture, also can find out pairing lantern slide picture apace according to corresponding time relationship.In addition, can also be according to this corresponding time relationship, between multimedia file content and corresponding lantern slide Word message, set up corresponding relation, thereby realize the video content of multimedia file is retrieved (because video content is associated with the lantern slide Word message of being demonstrated).
In an alternative embodiment, main control unit 209 synthesize audio signal, vision signal, the lantern slide signal that is received the multimedia file of specific format.This multimedia file comprises video content, audio content and the lantern slide information (for example lantern slide picture, lantern slide literal or their joint) with corresponding time relationship.
As required, audio frequency input handover module can also be set in main frame 2, it cooperates switch audio sources with main control unit 109.In addition, can also be allowing audio frequency input handover module be connected, by the switching of remote controller 108 control audio with wireless signal receiver.
Be noted that some video recording device in the typing vision signal, also inputting audio signal, even may adopt same cable transmission audio signal and vision signal.But this design does not depart from the scope of the present invention.That is to say that audio input interface 101 and video input interface 103 can be independently, also can be integrated.
As a kind of improvement, can also can also be connected to stenographing computer by main frame 2, receive the stenograph content of stenographing computer, the vision signal that main control unit 209 processing of main frame 2 are received, audio signal, stenograph content etc., according to time relationship stenograph content and video content, audio content are carried out correspondingly, and generate multimedia file.
Fig. 3 is the flow chart of imparting knowledge to students and recording according to system shown in Figure 1.Step S301 is the step that begins to record, and comprises main frame 2 and video recording device 101,102, demonstration computer 104, microphone etc. are connected energized etc.
Among the step S303, as required, judge whether to want the Switch Video source.Pass through video source handover module 207 Switch Video sources if switch then at step S305, then return step S303; If do not need to switch, then enter step S307.
Among the step S307, main frame 2 is by audio input interface 201 received audio signals, by video input interface 203 or computer interface 205 receiving video signals, also receive lantern slide signal (for example lantern slide picture and Word message thereof, and corresponding action such as page turning etc.) by computer interface.
Among the step S309, main frame 2 is handled 209 by main control unit and is handled audio signal and the vision signal that is received, and for example generates multimedia file and timeline information according to certain agreement such as rtsp, mms.The timeline information that main frame 2 and basis have generated makes marks to lantern slide picture (and literal) information.
Among the step S311, by multimedia file, timeline information and the lantern slide picture (and Word message) that generates among the cell stores step S309; Release module is according to synchronous issuing multimedia file of timeline information and lantern slide picture (and Word message).
Fig. 4 issues the video of being recorded, the schematic diagram of lantern slide picture by network.Fig. 4 is the screenshot capture of web browser, and as shown in Figure 4, among this embodiment, the layout of webpage is divided into video playback district 401, lantern slide viewing area 403 and lantern slide browsing area 405.Video playback district 401 shows multimedia file in the mode that is embedded into webpage, and buttons such as broadcast, time-out, F.F., playback are provided, and this technology is a mature technology very, and this does not give unnecessary details.It is the relevant lantern slide picture of multimedia file that shows with video playback district 401 that lantern slide browsing area 405 has been listed, when selecting certain lantern slide picture, this lantern slide picture can be in the lantern slide viewing area 403 shows, simultaneously, the video council in video playback district 401 is jumped on the time corresponding point automatically.For example, if selected lantern slide picture is when beginning to demonstrate in the 10th minute that begins to record, so, when this lantern slide picture selected in, its can be in the lantern slide viewing area 403 shows, simultaneously, the 10th minute position is jumped in the video council in video playback district 401 automatically, and begins to play.Conversely, when the video playback to the in video playback district in the time of 10 minutes, lantern slide viewing area 403 also can demonstrate this lantern slide picture automatically.In addition, can also be in the lantern slide viewing area 403 buttons that " a last lantern slide ", " next opens lantern slide " be set, the convenient use.In implementing, can be at the mouse action of Web browser end by script supervisory user such as JavaScript or Ajax, and with the message transmission of catching to the backstage (webserver 106 for example shown in Figure 1 or release module 215 shown in Figure 2), the backstage is according to user's request, search for, inquire about, program request etc.
As an alternative embodiment, viewing area 403 is used to show lantern slide literal or shorthand content.For example, in living broadcast environment, can be with the shorthand content release to viewing area 403.In the program request environment, when certain lantern slide picture selected in, the position relevant with this lantern slide picture jumped in the video council in video playback district 401 automatically, and viewing area 403 shows Word message or demonstration with the current video picture relevant stenograph relevant with this lantern slide.Because stenograph content and video content have corresponding time relationship,, realize search, program request etc. so can between stenograph content and video content, set up index relative.
Claims (10)
1. recording system that is used to impart knowledge to students with the meeting-place, comprise the main frame (2) that connects video recording device and audio frequency recording device, described main frame (2) comprises audio input interface (201), video input interface (203), main control unit (209), memory cell (213), it is characterized in that described main frame (2) also comprises:
Be used to connect the computer interface (205) of demonstration computer;
Cooperate the video source handover module (207) that is used to select from the vision signal of described video recording device or described demonstration computer with described main control unit (209);
Receive the lantern slide processing module (211) of the lantern slide signal on the described demonstration computer by described computer interface (205);
Wherein, described main control unit (209) is handled audio signal, vision signal and the lantern slide signal that is received, and generates multimedia file; Described memory cell (213) is stored described multimedia file.
2. recording system according to claim 1 is characterized in that, described main frame (2) also comprises release module (215), and it is connected with described memory cell (213) and is used to issue described multimedia file.
3. recording system according to claim 1 and 2, it is characterized in that, also comprise wireless signal transmitter and receiver, described receiver is connected with described main control unit (209), and described reflector is provided with and is used to start, suspends, stops to record and the button in Switch Video source.
4. recording system according to claim 3 is characterized in that, also comprises with described main control unit (209) cooperating the audio-source handover module be used to select from the audio signal of different audio frequency recording devices; Described reflector also is provided with the button of switch audio sources.
5. recording system according to claim 3 is characterized in that, described reflector is provided with and is used to control the button that lantern slide is play.
6. method for recording that is used to impart knowledge to students with the meeting-place may further comprise the steps:
S1, received audio signal;
S2, receiving video signals;
S3, reception lantern slide signal;
Audio signal, vision signal and lantern slide signal that S4, processing are received generate multimedia file.
7. method according to claim 6 is characterized in that, further comprises the vision signal of selective reception from video recording device or demonstration computer among the step S2.
8. method according to claim 6 is characterized in that, further comprises storage among the step S4 or issues described multimedia file.
9. method according to claim 6 is characterized in that, described lantern slide signal comprises lantern slide picture and Word message thereof.
10. according to any described method in the claim 6 to 9, it is characterized in that, by wireless signal control recording process startup, suspend and stop, and the control selective reception is from the vision signal of video recording device or computer.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007100736636A CN101272469A (en) | 2007-03-23 | 2007-03-23 | Recording system and method used for teaching and meeting place |
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| CNA2007100736636A CN101272469A (en) | 2007-03-23 | 2007-03-23 | Recording system and method used for teaching and meeting place |
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| CNA2007100736636A Pending CN101272469A (en) | 2007-03-23 | 2007-03-23 | Recording system and method used for teaching and meeting place |
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| CN102169643A (en) * | 2010-02-26 | 2011-08-31 | 卢君毅 | Dynamic electronic answering making method |
| CN102263929A (en) * | 2010-05-31 | 2011-11-30 | 黄金富 | Conference video information real-time publishing system and corresponding devices |
| CN102306499A (en) * | 2010-09-17 | 2012-01-04 | 苏州阔地网络科技有限公司 | Method for realization of audio recording |
| CN102316298A (en) * | 2010-09-17 | 2012-01-11 | 苏州阔地网络科技有限公司 | Method for realizing audio and video recording |
| CN103177611A (en) * | 2011-12-23 | 2013-06-26 | 李云峰 | Method for realizing multimedia courseware on E-ink book |
| CN103376770A (en) * | 2012-04-28 | 2013-10-30 | 西门子公司 | Numerical control system and numerical control machine tool |
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| CN103996314A (en) * | 2014-05-22 | 2014-08-20 | 南京奥格曼提软件科技有限公司 | Teaching system based on augmented reality |
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| CN104408983A (en) * | 2014-12-15 | 2015-03-11 | 广州市奥威亚电子科技有限公司 | Recording and broadcasting equipment-based intelligent teaching information processing device and method |
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| CN105590485A (en) * | 2014-11-17 | 2016-05-18 | 李镇岳 | Electronic audio-video teaching method |
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| CN102169643A (en) * | 2010-02-26 | 2011-08-31 | 卢君毅 | Dynamic electronic answering making method |
| CN102263929A (en) * | 2010-05-31 | 2011-11-30 | 黄金富 | Conference video information real-time publishing system and corresponding devices |
| CN102306499A (en) * | 2010-09-17 | 2012-01-04 | 苏州阔地网络科技有限公司 | Method for realization of audio recording |
| CN102316298A (en) * | 2010-09-17 | 2012-01-11 | 苏州阔地网络科技有限公司 | Method for realizing audio and video recording |
| CN103177611A (en) * | 2011-12-23 | 2013-06-26 | 李云峰 | Method for realizing multimedia courseware on E-ink book |
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| CN104918100A (en) * | 2015-06-02 | 2015-09-16 | 阔地教育科技有限公司 | Remote control method based on direct recording and broadcasting interactive system and direct recording and broadcasting interactive terminal |
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| CN107666619A (en) * | 2017-06-15 | 2018-02-06 | 北京金山云网络技术有限公司 | Live data transmission method, device, electronic equipment, server and storage medium |
| CN107666619B (en) * | 2017-06-15 | 2019-11-08 | 北京金山云网络技术有限公司 | Live data transmission method, device, electronic equipment, server and storage medium |
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