CN102202068A - Method and device for realizing secure transfer of audio/video files among computers of different networks - Google Patents
Method and device for realizing secure transfer of audio/video files among computers of different networks Download PDFInfo
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- CN102202068A CN102202068A CN2010101282702A CN201010128270A CN102202068A CN 102202068 A CN102202068 A CN 102202068A CN 2010101282702 A CN2010101282702 A CN 2010101282702A CN 201010128270 A CN201010128270 A CN 201010128270A CN 102202068 A CN102202068 A CN 102202068A
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Abstract
The invention discloses a method and device for realizing secure transfer of audio/video files among computers of different networks. The method transfers an audio/video signal through mutual record of a sound card or video card, realizes automatic mutual record through program linkage control, realizes coordination of program linkage control through special data interaction, and realizes security of the special data interaction through a limiting method of data format fixation and circuit isolation. The implementation device transfers the audio/video files through butt joint of the sound card or video card, performs interaction of control signal through butt joint of computer interfaces, and controls the mutual record of the sound card or video card in a linkage manner on two computers by use of a special program. The method and device disclosed by the invention can solve the problem that current exchange among the computers of different networks cannot be secure and simple at the same time, and can liberate workers of the broadcast television field from fussy manual re-recording, thereby saving precious working time.
Description
Technical field
The present invention relates to radio and television, computer application field.Especially a kind of at computer network or unit each other, realize easy and a kind of method switching tone, video file safely and a kind of device.
Background technology
At present, utilize computer and computer network to audio frequency, video file transmit, exchange, typing, editor, broadcast and management etc., very general.Especially in broadcast television industry, computer has been indispensable for the effect of audio-video signal.
Because the special nature of broadcast television industry, what determined that sound, video working net (work station) must be very is safe and reliable, and often has a lot of information all to exist dangerous virus on the Internet.So, need keep apart sound, video working net (station) with the Internet and other computer strictnesses in broadcast television industry.
But in concrete work, the staff often needs to utilize the Internet to transmit the audio-video signal file again or directly downloads audio-video document, thereby in daily reality, has a large amount of audio-video documents to carry out pirate recordings between two nets (station).
In order to ensure the safety of sound, video computer operation net (station) really, guarantee that audio frequency and video working nets (station) can infected by computer virus, when between two nets, carrying out the transmission of sound, video file, need multiple special quarantine measures, after sound, the video file of needs transmission being smashed, transmit again, reconfigure then, in the hope of eliminating the file virus that may exist by special-purpose software, but its fail safe of this quarantine measures still can not have absolute assurance.
Wanting definitely to guarantee this safe, can only be the pirate recordings way realization of carrying out one to one play accordingly, typing by sound card, video card.
Thereby, in present most of radio station and TV station, also all be that employing is this to the record way, by what realize manually.
But this one to one pirate recordings manually often will be wasted a large amount of quality time of staff.
So, the computers of different nets (comprise the stand-alone that is not on same network and stand-alone, stand-alone and computer network, computer network and computer network each other each other, carry out the transmission of audio-video document down together), so far, can be perfectly safe but very loaded down with trivial details, can be easy but safety inadequately, make safety and easy can not taking into account.
Summary of the invention
For the computer exchange each other that overcomes present different nets can not take into account safe and easy problem, the invention provides solution to this problem and device.
One, to achieve these goals, the technical scheme that method provided by the invention adopted is as follows:
1, by the method to record of sound card, video card, realizes the safety that audio-video signal transmits;
2,, realize this carrying out automatically to record by the method for program interlock control;
3, by fictionalizing the way of the opposing party's computer documents at this machine interface, realization can allow the purpose of the easy operation of user;
4, by carrying out directly mutual method of exclusive data, realize the coordination of this program interlock control;
5, fix by data format and method for limiting that circuit is isolated, realize the secure interactive of this exclusive data.
The embodiment of the inventive method is exactly:
The way to record of sound card by two computers or video card realizes that the audio frequency between two computers, the exchange of video file transmit.Carry virus in the time of can avoiding audio-video document to transmit like this.
By programme controlled way, realize this sound card or video card carrying out automatically record synchronously.
Program operates on the two computers simultaneously, and carry out the way of " conditional control information is mutual " each other by two computers, coordinate the interlock of two computers program, make it automatically to control the ordering of the priority that synchronously record and a plurality of file is transmitted of two computers sound card or video card.
Utilize this " restricted data interaction " to obtain the running state information of job requirements, sound card or video card of the other side's computer and the title name and the additional information that will transmit file, set up mutual Synchronization Control instruction.
By the other side's data information that obtains, the file name in the specific file that will exchange in the other side's computer, virtual come out on the man-machine dialog interface of this machine program, can be on the interface operation virtual duplicating of carrying out of the file of the file in this file and this machine, sticking card, deletion action, by this way, it is mutual that program is carried out real-time control information again, and sound card is automatically controlled in realization, video card carries out synchronously to record.
With regard to for the staff, the operation of its reality is just very simple like this.
Simultaneously, by the way that exchange of control information is transmitted with limitation, with the safety that guarantees that this data interaction transmits.Just, this control information mutual be the data interaction passage by special use, with set form, transmit to finite quantity, and mutual data be directly to produce rather than self-existent file by this program, carry virus in the time of can avoiding data to transmit like this.
Can not spread virus in order to guarantee " restricted data interaction ", can do further to isolate (for example being isolated) by hardware circuit, automatically the data of unscheduled form be filtered by hardware circuit with the hardware circuit of logic digital circuits, single chip circuit.
The enforcement of " special-purpose data exchange channel " can be the butt joint of the interface of two computers, and its interface can be the parallel port, also can be serial ports.Perhaps this enforcement, also can be by the two computers sound card to fetching realization, utilize sound card to transmit particular audio signal and explain data, for example adopt the Dual Tone Multifrequency signal, the correspondent transform by touch-tone signal and hexadecimal data comes Data transmission.
Two, the purpose in order to realize that the present invention proposes, the technical scheme that device provided by the invention adopted is as follows.
" two passages connect two computers and separate transmission briefly, exactly; Two computer interlocks of corresponding program packing control ", just this device has:
1, " audio frequency and video to record passage ", it utilizes sound card or video card butt joint carrying out sound, video file to transmit;
2, " control information designated lane ", it is that to be used for carrying out control signal between two computers mutual, is subjected to special restriction;
3, " control program ", it is contained in the control that can link on two computers.
By the operation of " control program ", realize: the automatic operation of a, control sound card or video card, b, carry out exchange message with the opposing party's computer, c, operator are provided with human-computer dialogue and intervene.
By " audio frequency and video to record passage " and " control data designated lane " division of labor that Each performs its own functions, what can guarantee to isolate between two computers is perfectly safe; By the control program of interlock, that can realize operating is easy.
Specifically, be exactly:
It is by the sound card of two computers or realizing recording of video card that sound between two computers, the exchange of video file transmit, also be, the transmission of sound, video file is the butt joint by two sound cards or two video cards of correspondence, synchronously by one of them broadcast, the mode of another typing realizes, sound card or video card input and output can be simulated, also can be digital, how right sound card or video card can be arranged between two computers simultaneously to record.
This synchronous record is carried out automatically by program control, program operates on the two computers simultaneously.
The program of two operations is simultaneously automatically controlled the ordering of this two machines to the priority of synchronous and a plurality of files transmission of record by the real-time exchange of mutual control information.
The exchange of this control information is restricted, be by setting up special-purpose data exchange channel, with set form, transmit to finite quantity, and mutual data content be formatted data rather than the self-existent file that will directly produce by this program.
Further, by " special-purpose data exchange channel ", synchronisation control command between two computers not only, information such as the running status of sound card or video card (for example should card state whether idle), and mutual filename and the file additional information that transmits file each other, so just can allow computer program at the data message that obtains these mutual gained, by on the man-machine dialog interface of program in virtual mode, demonstrate the title of the file and the file thereof of the other side's computer, the operator can carry out virtual towing to the file of the file in this file and this machine by interface operation, and virtual duplicates, sticking card, deletion.
Computer program also can be by mutual information processing, and the file that executable operations person sets transmits the order priority.
So just can make the staff carry out audio frequency and video when carrying out mutual pirate recordings, just very simple.
" special-purpose data exchange channel " can realize by the butt joint of two computers interface, and its interface can be the parallel port, also can be serial ports.
What dock between the two computers interface can directly connect, and also can be isolated by the hardware circuit of logic digital circuits, single chip circuit, automatically the data of unscheduled form is filtered by hardware circuit.
Perhaps this " special-purpose data exchange channel ", it also can be butt joint realization by the two computers sound card, utilize sound card to transmit particular audio signal and explain data, it wherein can be touch-tone signal, also be dtmf signal, realize Data transmission by the corresponding relation of touch-tone signal and hexadecimal data.
Can guarantee that like this computer virus can not spread mutually.
Though the present invention in the transmission of file, can not effectively solve the transmission speed problem, can not be quick as direct file transmits, the labour intensity that can liberate the staff.The staff be if the pirate recordings audio-video document as long as make simple interface operation, just can be done other things, finds out the file that duplicates again and handle and get final product after crossing certain hour in corresponding file.
Because actual pirate recordings process is a procedure auto-control, the operator makes this operation directly transmit the same easy with file by the man-machine interface pseudo operation, can with virtual duplicate, the towing means realize, so, concerning the staff, be very useful.
If how right sound card, video card butt joint are arranged between two computers, a plurality of files are handled simultaneously, raise the efficiency speed.
Because audio-video document is to pass through sound card, video card fully, thereby is perfectly safe; Because the exchanged form of control information is restricted, especially by single-chip microcomputer, logical circuit is so can realize absolute safety technically.
In a word, the invention has the beneficial effects as follows,, can make pirate recordings very easy again, (, guarantee safety by two transmission passages because it can either guarantee safety; By two program interlock controls, guarantee easy.), so just can promote the use of, can make in the loaded down with trivial details work of the personnel that record of radio and television to free in broadcast television industry, can liberate the productive forces effectively, save a large amount of quality time.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the operation principle block diagram of an integral body of the present invention.
Fig. 2 be among the present invention " audio frequency and video are to the record passage " by many to the operation principle block diagram of sound card (or video card) channeling to the record passage.
Fig. 3 is the operation principle block diagram that " control information designated lane " isolated by single chip circuit among the present invention.
Fig. 4 is " a control information designated lane " and " audio frequency and video are to a record passage " operation principle block diagram by the sound card composition among the present invention.
Fig. 5 is the schematic diagram of the window of the man-machine dialog interface of " special-purpose control program " among the present invention.
Among the figure, 1, audio frequency and video are to the record passage, 2, the control information designated lane, 3, special-purpose control program, 5, computer, 6, sound card/video card, 7, computer interface, 8, computer network, 11, amplifying circuit, 21, the isolation processing circuit, 31, this machine file frame, 32, his machine file frame.
The meaning of sound card/video card (6) indication is, can be sound card, also can be video card (being capure card), if sound card is only limited to the transmission audio file; If video card then can transmit audio-video document, for purposes of the invention, its operation principle is the same.
Embodiment
In Fig. 1, computer sound card/video card (6) and computer interface (7) are all arranged on two computers (5), they are computers in the computer network (8) separately.
Audio frequency and video are to the two sound cards/video card (6) in record passage (1) the connection two computers (5); Control information designated lane (2) connects the interface (7) in the two computers (5); Special-purpose control program (3) is contained in respectively in two computers (5).
When the user after the man-machine dialog interface by the special-purpose control program (3) in arbitrary computer (5) is set the precedence of the concrete file (comprising the transmission or the reception of file) that will transmit and transmission, special-purpose control program (3) just by control information designated lane (2) in real time with the opposing party's computer interactive relevant information.If sound card/video card (6) does not have the free time, this process is just waited for; In case when the sound card/video card of this machine of detecting and the other side's computer (6) is all idle, just send the Synchronization Control instruction, the sound card/video card (6) of two computers brought into operation automatically.Until to the record end.
If in to the record process, if more critical recording work is arranged, (can realize by programming) special-purpose control program (3) can suspend current work, when sound card has the free time, continue again record, and, mark corresponding filename (filename and file-related information transmit by control information designated lane (2) with direct hexadecimal code) at last separating the synthetic complete signal file of a plurality of slice groups of recording.
In Fig. 2, other situations are the same with Fig. 1 embodiment, and just sound card/the video card (6) in the computer has more than two pairs, under the coordination control of special-purpose control program (3), can work simultaneously, transmit different audio-video signals separately, so just improve transmission efficiency.
In Fig. 3, audio frequency and video can be carried out signal and amplify on the record passage (1) amplifying circuit (11) being arranged, and general can be sound console.Isolation processing circuit (21) is arranged on the control information designated lane (2), general as single chip circuit.(if the software of program limits especially, also can directly connect with cable without hardware isolated).Like this; programming by single-chip microcomputer; both can filter the data that send from computer interface (7); data to unscheduled form shield; no longer be sent in another computer; can effectively prevent broadcast of computer virus; can make manufacturer convenient again; more effectively protect the intellectual property of this product; can make in practice that to be delivered to the data format and the single-chip microcomputer of single-chip microcomputer from computer inequality at the data format that is delivered to computer; when not having this special-purpose hardware circuit; control program can not be worked, and just can effectively prevent piracy.
Its computer interface (7) can be the parallel port of computer, also can be the RS-232C serial ports, and perhaps USB serial ports is as long as corresponding program is corresponding just passable.
In Fig. 4, control information designated lane (2) is shared to record passage (1) with audio frequency and video, when needing to carry out control signal between two machines when mutual, transmit particular audio signal by sound card and explain data, this particular audio signal of the opposing party's COMPUTER DETECTION parses control information corresponding, and what this was wherein the most frequently used is touch-tone signal, also be dtmf signal, realize data passes by the corresponding relation of touch-tone signal and hexadecimal data.
Actual system is installed to be connected simply a lot.
In Fig. 5, the schematic diagram of the window of the man-machine dialog interface of " special-purpose control program " among the present invention, (can realize by programming) on the window on the man-machine dialog interface of program, has two special-purpose columns, this machine file frame (31) and his machine file frame (32).This machine file frame (31) is used for the virtual file of depositing this TV station computer (special use transmits), and it can be by setting some files of corresponding this machine.His machine file frame (32) is used for the file of the virtual the opposing party's of depositing computer (special use transmits), and it can pass through some files of the corresponding the opposing party's of setting computer.
Between two file frame, can carry out virtual towing, perhaps virtual shearing, duplicate, sticking card, deletion.
For example, if set in the file that is used for exchanging, this machine has file A, B, C, another computer has 1,2,3,4,5,6, after the control program of two computers all moves, automatic information interaction by control information designated lane (2), just can be in this machine file frame (31), demonstrate corresponding filename respectively in his the machine file frame (32), on the interface, just can carry out mutual shearing, duplicate, sticking card, even deletion, owing to this operation is a non real-time, need especially to indicate, when transmission is not finished, filename is to show grey, and when transmission was finished, filename just showed black, the operator just can come into plain view, and is very convenient.
If " special-purpose control program " just simple programming can not transmit the filename and the file additional information of file by control information designated lane (2), determine corresponding relation by swap file numbering or record delivery time each other.Just after file transmits successfully, demonstration be not corresponding filename, be to number or temporal information, the artificial correspondence of needs is searched.
In reality was implemented, special-purpose control program (3) can be a software independently, also can be embedded in audio frequency and video software for editing and other software.
Claims (10)
1. the computers of different nets are realized easy and switching tone safely each other, the method of video file, " computer " of indication comprises the computer of unit and the computer on the network, " computer of different nets each other " is meant the stand-alone and the stand-alone that are not on same network, stand-alone and computer network, computer network and computer network are each other, " sound; video file " is meant and comprises pure audio file, video file, and the audio-video document that has Voice ﹠ Video simultaneously, the method is characterized in that: the sound between two computers, the transmission of video file is realizing recording by the sound card of two computers or video card, it also is sound, the transmission of video file is the connection by two sound cards or two video cards of correspondence, synchronously by one of them broadcast, the mode of another typing realizes, and this sound, video synchronously to the record, be to realize automatically by operating in the control that links of program on the two computers simultaneously, program is the control that comes executable operations person according to window setting on the man-machine dialog interface, and the interlock of two computers program, carry out information " alternately " each other by two computers and come automatic synchronization, it is the job requirements of obtaining the opposing party's computer by " alternately ", the running state information of sound card or video card, and the title name and the additional information that will transmit file, set up mutual Synchronization Control instruction, and this " alternately " is restricted, be a kind of " conditional information interaction ", it is the interface channel by special use, to limit data format, limit data bulk, and limit the data transmitted and be by this program and directly produce rather than the method for self-existent file, realize this restriction.
2. according to claims 1 described method, it is characterized in that: the transmission passage that is used for carrying out " conditional information mutual " between two computers, be by the two computers interface to fetching realization, computer interface can be the parallel port, it also can be serial ports, that dock between its two computers interface or direct the connection, perhaps pass through logic digital circuits, connect again after the hardware circuit isolation processing of single chip circuit, by hardware circuit the data that do not meet the agreement form are filtered, the interface channel of perhaps this " conditional information mutual ", also can be to connect by the two computers sound card to realize, utilize sound card to transmit particular audio signal and explain data, this wherein can be a touch-tone signal, also be dtmf signal, realize data passes by the corresponding relation of touch-tone signal and hexadecimal data.
3. according to claims 1 described method, it is characterized in that: program is used for the window setting of executable operations person control, be on the man-machine dialog interface of program, to fictionalize two exclusive files, be used for the file of an appointment in corresponding this machine and the opposing party's computer and audio-video document wherein respectively, make between these two exclusive files can carry out virtual shearing, duplicate, sticking card, deletion and sorting operation, program is again by these information, control sound card, video card synchronously to the record, control a plurality of files and successively sort.
4. according to claims 1 described method, a kind of computer of different nets is realized switching tone safely each other, the device of video file, this device has computer (5), sound card/video card in the computer (6), computer interface (7) and working procedure, said not two computers (5) on same network can be units, it also can be a loom in each comfortable computer network (8), described sound card/video card (6) is meant sound card or video card, it is characterized in that: this device also has audio frequency and video to employing passage (1), the special-purpose control program of control information designated lane (2) (3), described audio frequency and video are to employing passage (1), be meant that the sound card that connects two computers or the sound of video card look signal connection device, this connection can be the direct connection of the two sound cards/video card (6) of correspondence, the connection of handling through amplifying circuit (9) in the middle of also can being, described control information designated lane (2) is meant the data-transmission channel of the control information that is exclusively used in mutual two computers, isolation processing circuit (21) wherein can be arranged, described special-purpose control program (3) is divided in the two computers, the operation of special-purpose control program (3) can be controlled the synchronous working of the sound card/video card (6) of two machines, and the broadcast of a plurality of files, the ordering of typing, two special-purpose control programs (3) can transmit by control information designated lane (2), mutual exchange pertinent information data, mutual data be restricted, specific frame format is arranged, mutual data be self directly to produce but not self-existent file by this special use control program (3), mutual content can have the Synchronization Control instruction, the running state information of sound card or video card, and the filename and the file additional information that will transmit file, special-purpose control program (3) is by the information of the mutual gained of control information designated lane (2), file in the particular file folder on the man-machine dialog interface of program in virtual the other side's computer, virtual the duplicating that can carry out the alternative document of the file in this file and this machine by human-computer dialogue, sticking card, deletion can transmit the order priority by enactment document on operation interface.
5. according to claims 4 described devices, it is characterized in that: audio frequency and video wherein can be with a pair of sound card on a pair of computer or the connection of video card to employing passage (1), it also can be set with the many connections to sound card or video card on a pair of computer, sound card or video card input, output can be analog signals, also can be digital signals.
6. according to claims 4 described devices, it is characterized in that: control information designated lane (2) wherein is connected with the interface (7) of two computers by isolation processing circuit (21) and forms, and the computer interface that is connected (7) can be RS-232 serial ports, USB serial ports, also can be the parallel port.
7. according to claims 4 or 6 described devices, it is characterized in that: the isolation processing circuit (21) in the control information designated lane (2), can be single chip circuit, also can be combinational logic digital circuit or sequential logic digital circuit, perhaps can be the cable that leads directly to.
8. according to claims 4 described devices, it is characterized in that: control information designated lane (2) is wherein docked by the input and output of two computers sound card/video card (6) to be formed, transmit particular audio signal by sound card each other, the corresponding separately different number of different audio frequency, by number combination and composition data information, wherein can be by transmitting touch-tone signal, promptly dtmf signal be realized data interaction, 16 groups of corresponding 16 system numbers of touch-tone signal.
9. according to claims 4 described devices, it is characterized in that: special-purpose control program (3) is by the data message of the mutual gained of control information designated lane (2), can not transmit the filename and the file additional information of file, only mutual each other numbering, the temporal information of transmitting.
10. according to claims 4 described devices, it is characterized in that: special-purpose control program (3) can be a software independently, also can be embedded in audio frequency and video software for editing and other software.
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| CN2010101282702A CN102202068A (en) | 2010-03-22 | 2010-03-22 | Method and device for realizing secure transfer of audio/video files among computers of different networks |
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| CN2010101282702A CN102202068A (en) | 2010-03-22 | 2010-03-22 | Method and device for realizing secure transfer of audio/video files among computers of different networks |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102609048A (en) * | 2012-03-11 | 2012-07-25 | 赵立峰 | Computer and method for playing audio and video files on demand |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101123618A (en) * | 2007-08-20 | 2008-02-13 | 阳术国 | Scheduling method for audio/video device communicating with computer |
| CN101166278A (en) * | 2006-10-20 | 2008-04-23 | 黑龙江大学 | Method for video, audio and synchronization control under network interaction environment |
| CN101246417A (en) * | 2007-02-13 | 2008-08-20 | 艾威梯软件技术(北京)有限公司 | Method and system for non-intermittence software switch of audio data flow input/output |
| CN101611443A (en) * | 2006-10-26 | 2009-12-23 | 迪博克斯科技公司 | The audio interface that is used for the controlled motion signal |
-
2010
- 2010-03-22 CN CN2010101282702A patent/CN102202068A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101166278A (en) * | 2006-10-20 | 2008-04-23 | 黑龙江大学 | Method for video, audio and synchronization control under network interaction environment |
| CN101611443A (en) * | 2006-10-26 | 2009-12-23 | 迪博克斯科技公司 | The audio interface that is used for the controlled motion signal |
| CN101246417A (en) * | 2007-02-13 | 2008-08-20 | 艾威梯软件技术(北京)有限公司 | Method and system for non-intermittence software switch of audio data flow input/output |
| CN101123618A (en) * | 2007-08-20 | 2008-02-13 | 阳术国 | Scheduling method for audio/video device communicating with computer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102609048A (en) * | 2012-03-11 | 2012-07-25 | 赵立峰 | Computer and method for playing audio and video files on demand |
| CN102609048B (en) * | 2012-03-11 | 2014-04-16 | 赵立峰 | Computer and method for playing audio and video files on demand |
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Application publication date: 20110928 |