CN107948038A - A kind of LAN interoperability methods - Google Patents
A kind of LAN interoperability methods Download PDFInfo
- Publication number
- CN107948038A CN107948038A CN201710950425.2A CN201710950425A CN107948038A CN 107948038 A CN107948038 A CN 107948038A CN 201710950425 A CN201710950425 A CN 201710950425A CN 107948038 A CN107948038 A CN 107948038A
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- Prior art keywords
- file
- data
- lan
- picture
- data processing
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention discloses a kind of LAN interoperability methods, differential signal transmission agreement is minimized using the TMDS of HDMI, the fileinfo that will convert into picture format by HDMI is transferred in the video frequency collection card of another LAN, the digital signal of picture is got by video frequency collection card, pictorial information is parsed into original by data processing module, so as to obtain the data of transmission.The present invention is capable of the intercommunication of real two independent LANs, and the channel of information communication is provided for the PC of two different segments, and this method is without using internet communication, so as to avoid the leakage of data and possibility that PC machine is invaded；Differential signal transmission agreement transmission data are minimized using TMDS, add the stability of data transfer.
Description
Technical field
The present invention relates to field of computer technology, more particularly to a kind of LAN interoperability methods.
Background technology
With the development of the times, communicate the more and more important of change.Most industries are all to select internet to communicate,
While internet offers convenience, the problems such as also bringing information security.So for the industry higher to demand for security, can keep away
Exempt to select internet.But it is even closer with the contact of industry, communication from each other be it is essential, it is how obstructed for two
The communication of LAN Build Security be particularly important.
Present common interconnected communication has following drawback：In the Internet transmission data, easily just can directly be led to by criminal
Cross some means and extract information；Internet communication safety measure imprecision is easily invaded by criminal；In internet communication, by
Network environment influence is more serious, if network is obstructed, easily phenomena such as generation communication blocking, packet loss.
The content of the invention
Based on technical problem existing for background technology, the present invention proposes a kind of LAN interoperability methods, using HDMI's
TMDS minimizes the interconnection between differential signal transmission two regional networks of protocol realization, the transmission for Miscellaneous Documents.
A kind of LAN interoperability methods, pass through TMDS between two LANs and minimize differential signal transmission agreement and transmit number
According to method and step is as follows：
S1：The file that the PC of one LAN will be sent is encoded into picture by data processing module, exports to video card；
S2：Pictorial information into video card is transferred to another office by the TMDS minimum differential signal transmission agreements of HDMI
Domain net；
S3：The PC of another LAN obtains sectional drawing by video frequency collection card and preserves in memory, and passes through data processing mould
Shot image information is decoded into data output signal by block.
Preferably, the attribute for file being sent in the S1 includes filename, creation time, modification time and file number of words
Section.
Preferably, the cataloged procedure of data processing module is as follows in the S1：
1) file is compressed using ZIP compression algorithms；
2) file content compressed in file attribute and S1 is stored in one section of continuous memory；
3) file data of file attribute and compressed file is equally divided into several blocks, and by block data binary system
Change, represent 1 by stain, (GDI interfaces are used to handle all Windows the mode of white point expression 0 by GDI interfaces by data
Figure and the image output of program) it is converted into a BMP picture being made of black and white lattice.
Preferably, the decoding process of data processing module is as follows in the S2：
1) data processing module in the S3 obtains the picture of video frequency collection card preservation in memory, parses in picture
Black and white lattice, is then reduced into binary data by picture；
2) binary data is being reduced to by file attribute by decompression algorithm and file is stored in computer.
Preferably, it is used for transmission in LAN on the PC of file and is respectively mounted video frequency collection card.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention minimizes differential signal transmission agreement using the TMDS of HDMI, and picture format is will convert into by HDMI
Fileinfo is transferred in the video frequency collection card of another LAN, and the digital signal of picture is got by video frequency collection card, figure
Piece information is parsed into original by data processing module, so as to obtain the data of transmission.
The present invention is capable of the intercommunication of real two independent LANs, and the PC for two different segments provides information communication
Channel, this method is without using internet communication, so as to avoid the leakage of data and possibility that PC machine is invaded；Using TMDS most
Smallization differential signal transmission agreement transmits data, adds the stability of data transfer.
Brief description of the drawings
Attached drawing is used for providing a further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
Apply example to be used to explain the present invention together, be not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is a kind of information transmission process figure of LAN interoperability methods proposed by the present invention.
Embodiment
The present invention is made with reference to specific embodiment further to explain.
A kind of LAN interoperability methods, the PC used in intercommunication LAN are respectively mounted video frequency collection card；Method and step is such as
Under：
S1：The file that the PC of one LAN will be sent is encoded into picture by data processing module, exports to video card；
The attribute for sending file is several sections of including filename, creation time, modification time and file word.
S2：Pictorial information into video card is transferred to another office by the TMDS minimum differential signal transmission agreements of HDMI
Domain net；
S3：The PC of another LAN obtains sectional drawing by video frequency collection card and preserves in memory, and passes through data processing mould
Shot image information is decoded into data output signal by block.
The cataloged procedure of data processing module is as follows in S1：
1) file is compressed using ZIP compression algorithms；
2) file content compressed in file attribute and S1 is stored in one section of continuous memory；
3) file data of file attribute and compressed file is equally divided into several blocks, and by block data binary system
Change, 1 is represented by stain, white point represents that data by GDI interfaces, are converted into one and are made of black and white lattice by 0 mode
BMP pictures.
The decoding process of data processing module is as follows in S2：
1) data processing module in the S3 obtains the picture of video frequency collection card preservation in memory, parses in picture
Black and white lattice, is then reduced into binary data by picture；
2) binary data is being reduced to by file attribute by decompression algorithm and file is stored in computer.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of LAN interoperability methods, it is characterised in that differential signal transmission is minimized by TMDS between two LANs
Agreement transmits data, and method and step is as follows：
S1：The file that the PC of one LAN will be sent is encoded into picture by data processing module, exports to video card；
S2：Pictorial information into video card is transferred to another local by the TMDS minimum differential signal transmission agreements of HDMI
Net；
S3：The PC of another LAN obtains sectional drawing by video frequency collection card and preserves in memory, and will by data processing module
Shot image information is decoded into data output signal.
2. a kind of LAN interoperability methods according to claim 1, it is characterised in that the attribute of file is sent in the S1
It is several sections of including filename, creation time, modification time and file word.
A kind of 3. LAN interoperability methods according to claim 1 or 2, it is characterised in that data processing mould in the S1
The cataloged procedure of block is as follows：
1) file is compressed using ZIP compression algorithms；
2) file content compressed in file attribute and S1 is stored in one section of continuous memory；
3) file data of file attribute and compressed file is equally divided into several blocks, and by block data binarization,
1 is represented by stain, and white point represents that 0 mode schemes data by GDI interface conversions into a BMP being made of black and white lattice
Piece.
A kind of 4. LAN interoperability methods according to claim 1 or 2, it is characterised in that data processing mould in the S2
The decoding process of block is as follows：
1) data processing module in the S3 obtains the picture of video frequency collection card preservation in memory, parses the black and white in picture
Dot matrix, is then reduced into binary data by picture；
2) binary data is being reduced to by file attribute by decompression algorithm and file is stored in computer.
5. a kind of LAN interoperability methods according to claim 1, it is characterised in that file is used for transmission in LAN
Video frequency collection card is respectively mounted on PC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710950425.2A CN107948038A (en) | 2017-10-13 | 2017-10-13 | A kind of LAN interoperability methods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710950425.2A CN107948038A (en) | 2017-10-13 | 2017-10-13 | A kind of LAN interoperability methods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107948038A true CN107948038A (en) | 2018-04-20 |
Family
ID=61935232
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| CN201710950425.2A Pending CN107948038A (en) | 2017-10-13 | 2017-10-13 | A kind of LAN interoperability methods |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110515575A (en) * | 2018-05-21 | 2019-11-29 | 北京仁光科技有限公司 | Device and method for being interacted to the computer in a subnet |
| CN110784620A (en) * | 2019-10-31 | 2020-02-11 | 南京耕硕电子科技有限公司 | Equipment data intercommunication method |
| CN110830744A (en) * | 2018-08-10 | 2020-02-21 | 北京仁光科技有限公司 | Safety interaction system |
| CN110830423A (en) * | 2018-08-10 | 2020-02-21 | 北京仁光科技有限公司 | Secure network data interaction system and method |
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| CN110830744A (en) * | 2018-08-10 | 2020-02-21 | 北京仁光科技有限公司 | Safety interaction system |
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Application publication date: 20180420 |