CN204291042U - A kind of high-speed light isolation one-way transmission apparatus - Google Patents
A kind of high-speed light isolation one-way transmission apparatus Download PDFInfo
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- CN204291042U CN204291042U CN201420773123.4U CN201420773123U CN204291042U CN 204291042 U CN204291042 U CN 204291042U CN 201420773123 U CN201420773123 U CN 201420773123U CN 204291042 U CN204291042 U CN 204291042U
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Abstract
The utility model discloses a kind of high-speed light isolation one-way transmission apparatus, relate to one-way transmission field, described one-way transmission apparatus comprises: outer terminal module, one-way transmission path module and interior terminal module, and described outer terminal module comprises: data capture module, encoder and the first optical communications module; Described one-way transmission path module comprises: fiber optic transmitter, connection line of optic fibre and fiber optic receiver; Described interior terminal module comprises: the second optical communications module, decoder and data-pushing module.This one-way transmission apparatus is by adopting physical layer unidirectional point of optical transport technology, form the high-speed data one-way transmission path without feedback, realize internetwork physical isolation and one-way transmission, not only reduce the waste of CD, and fundamentally solve the information-leakage produced when data are transmitted between different security level network, government bodies, military project public institution, confidential security concerning security matters unit etc. can be widely used in.
Description
Technical field
The utility model relates to one-way transmission field, particularly relates to a kind of high-speed light isolation one-way transmission apparatus.
Background technology
The opening of computer network creates many safety problems, and network attack, leakage of information, Internet-related crimes emerge in an endless stream.And the network boundary defense system that employing take fire compartment wall as core is merely able to meet the general demand for security of informatization, is but difficult to the protection problem solving the critical networks such as Information System Security, between network, all adopts physical isolation mode to realize.
For using maximum modes of CD burning that adopts exactly to realize between different security level network at present, but transfer of data is all need to carry out imprinting each time, uses more loaded down with trivial details, and brings great waste.The transfer of unidirectional of light is known general knowledge already, monomode fiber is with its pure one-way physically, can ensure that data message flows from Low Security Level network to High Security Level network, ensure that the information in High Security Level network can not flow in Low Security Level network simultaneously, thus reach data pass and prevent from divulging a secret effectively compromise.
Utility model content
The utility model provides a kind of high-speed light isolation one-way transmission apparatus, the utility model achieves the express network data transmission system based on light one-way transmission, solve the loaded down with trivial details and waste using CD to bring, in turn ensure that the safety of critical network simultaneously, described below:
A kind of high-speed light isolation one-way transmission apparatus, described one-way transmission apparatus comprises: outer terminal module, one-way transmission path module and interior terminal module.Described outer terminal module comprises: data capture module, encoder and the first optical communications module; Described one-way transmission path module comprises: fiber optic transmitter, connection line of optic fibre and fiber optic receiver; Described interior terminal module comprises: the second optical communications module, decoder and data-pushing module.
Described data capture module is connected with described encoder, described encoder is connected with described first optical communications module, described first optical communications module is connected with described fiber optic transmitter, described fiber optic transmitter is connected with described connection line of optic fibre, described connection line of optic fibre is connected with described fiber optic receiver, described fiber optic receiver is connected with described second optical communications module, and described second optical communications module is connected with described decoder, and described decoder is connected with described data-pushing module.
Between described encoder and described first optical communications module, communication interface is PCI-E interface; Between described second optical communications module and described decoder, communication interface is also PCI-E interface.
Described encoder comprises: hardware encoding block, the first forward error correction coding module and the first scrambler module; Described decoder comprises: the second scrambler module, the second forward error correction coding module and hardware decode module.
Described hardware encoding block is connected with described first forward error correction coding module, and described first forward error correction coding module is connected with described first scrambler module; Described second scrambler module is connected with described second forward error correction coding module, and described second forward error correction coding module is connected with described hardware decode module.
The beneficial effect of the technical scheme that the utility model provides is: this one-way transmission apparatus is by adopting physical layer unidirectional point of optical transport and DMA passage pipeline data transmission technology, form the high-speed data one-way transmission path without feedback, realize the internetwork physical isolation of different security level and one-way transmission truly.This utility model compensate for the deficiency of existing network Border Protection technology, not only reduces the waste of CD, and fundamentally solves the information-leakage produced when data are transmitted between different security level network.The utility model has the features such as fail safe is high, reliability is high, transmission delay is little, good stability, be applicable to the device of different security level inter-network data one-way transmission, all kinds of occasions such as government bodies, military project public institution, confidential security unit, concerning security matters unit, public security organs, procuratorial organs, people's courts and judicial organs can be widely used in.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of high-speed light isolation one-way transmission apparatus;
Fig. 2 is the structural representation of a kind of high-speed light isolation one-way transmission apparatus encoder;
Fig. 3 is the structural representation of a kind of high-speed light isolation one-way transmission apparatus decoder;
Fig. 4 is the application schematic diagram of a kind of high-speed light isolation one-way transmission apparatus.
In accompanying drawing, the list of parts representated by each label is as follows:
1: outer terminal module; 2: one-way transmission path module;
3: interior terminal module; 11: data capture module.
12: encoder; 13: the first optical communications modules;
21: fiber optic transmitter; 22: connection line of optic fibre;
23: fiber optic receiver; 31: the second optical communications modules;
32: decoder; 33: data-pushing module;
121: hardware encoding block; 122: the first forward error correction coding modules;
123: the first scrambler modules; 321: the second scrambler modules;
322: the second forward error correction coding modules; 323: hardware decode module.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below the utility model execution mode is described in further detail.
The utility model embodiment provides a kind of high-speed light isolation one-way transmission apparatus, and see Fig. 1, this one-way transmission apparatus comprises: outer terminal module 1, one-way transmission path module 2 and interior terminal module 3.
Outer terminal module 1 comprises: data capture module 11, encoder 12 and the first optical communications module 13.
One-way transmission path module 2 comprises: fiber optic transmitter 21, connection line of optic fibre 22 and fiber optic receiver 23.
Interior terminal module 3 comprises: the second optical communications module 31, decoder 32 and data-pushing module 33.
Data capture module 11 is connected with encoder 12, encoder 12 is connected with the first optical communications module 13, first optical communications module 13 is connected with fiber optic transmitter 21, fiber optic transmitter 21 is connected with connection line of optic fibre 22, connection line of optic fibre 22 is connected with fiber optic receiver 23, fiber optic receiver 23 is connected with the second optical communications module 31, and the second optical communications module 31 is connected with decoder 32, and decoder 32 is connected with data-pushing module 33.
During transfer of data, data capture module 11 captures transfer of data to encoder 12 from Low Security Level network, coded data is transferred to the first optical communications module 13 after encoder 12 completes coding, coded data is transferred to fiber optic transmitter 21 by the first optical communications module 13, coded data is changed into light signal from the signal of telecommunication and transfers to fiber optic receiver 23 by connection line of optic fibre 22 by fiber optic transmitter 2, light signal is converted to coded data and transfers to the second optical communications module 31 by fiber optic receiver 23, coded data is transferred to decoder 32 and completes data decode by the second optical communications module 31, decoded data is transferred to data-pushing module 33 by decoder 32, decoded data transfers in High Security Level network by data-pushing module 33.
Data capture module 11 realizes connecting with the Low Security Level network equipment, realizes the crawl to low close network data; Data-pushing module 33 realizes connecting with the High Security Level network equipment, realizes the propelling movement of data to High Security Level network.
Between encoder 12 and the first optical communications module 13, communication interface is PCI-E interface; Between second optical communications module 31 and decoder 32, communication interface is also PCI-E interface.
See Fig. 2 and Fig. 3, encoder 12 comprises: hardware encoding block 121, first forward error correction coding module 122 and the first scrambler module 123; Decoder 32 comprises: the second scrambler module 321, second forward error correction coding module 322 and hardware decode module 323.
In encoder 12, hardware encoding block 121 is connected with the first forward error correction coding module 122, and the first forward error correction coding module 122 is connected with the first scrambler module 123.
In the decoder 32, the second scrambler module 321 is connected with the second forward error correction coding module 322, and the second forward error correction coding module 322 is connected with hardware decode module 323.
The use of hardware encoding block 121 and hardware decode module 323 in one-way transmission apparatus, ensure that carrying out fast to code and decode in transmission.
One-way transmission apparatus passes through the use of the first forward error correction coding module 122 and the second forward error correction coding module 322, not only in transmitting procedure Timeliness coverage mistake code element, and can carry out error correction to wrong code element, reduces the error rate.
One-way transmission apparatus passes through the use of the first scrambler module 123 and the second scrambler module 321, randomization has been carried out to data stream, to prevent in data flow long connect 0 or long connect 1 appearance, reduce error rate in the transmission, effectively can also solve continuous print packet loss problem in transmitting procedure simultaneously.
Once there is error in data or loss in transmission, can detect at receiving terminal rapidly and provide warning message.
See Fig. 4, the utility model one-way transmission apparatus needs to carry out in two different security level networks in actual application, and data transfer to High Security Level network from Low Security Level network by one-way transmission apparatus.
This one-way transmission apparatus can be integrated with various environment for use, realizes the unidirectional information transmission to file, database, mail, network application etc., without any feedback information in transmitting procedure, stops the possibility of network intercepting from physical layer.
The utility model embodiment is to the model of each device except doing specified otherwise, and the model of other devices does not limit, as long as can complete the device of above-mentioned functions.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, above-mentioned the utility model embodiment sequence number, just to describing, does not represent the quality of embodiment.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (3)
1. a high-speed light isolation one-way transmission apparatus, described one-way transmission apparatus comprises: outer terminal module, one-way transmission path module and interior terminal module, is characterized in that,
Described outer terminal module comprises: data capture module, encoder and the first optical communications module;
Described one-way transmission path module comprises: fiber optic transmitter, connection line of optic fibre and fiber optic receiver;
Described interior terminal module comprises: the second optical communications module, decoder and data-pushing module;
Described data capture module is connected with described encoder, described encoder is connected with described first optical communications module, described first optical communications module is connected with described fiber optic transmitter, described fiber optic transmitter is connected with described connection line of optic fibre, described connection line of optic fibre is connected with described fiber optic receiver, described fiber optic receiver is connected with described second optical communications module, and described second optical communications module is connected with described decoder, and described decoder is connected with described data-pushing module.
2. a kind of high-speed light isolation one-way transmission apparatus according to claim 1, it is characterized in that, between described encoder and described first optical communications module, communication interface is PCI-E interface; Between described second optical communications module and described decoder, communication interface is also PCI-E interface.
3. a kind of high-speed light isolation one-way transmission apparatus according to claim 1, is characterized in that,
Described encoder comprises: hardware encoding block, the first forward error correction coding module and the first scrambler module;
Described decoder comprises: the second scrambler module, the second forward error correction coding module and hardware decode module;
Described hardware encoding block is connected with described first forward error correction coding module, and described first forward error correction coding module is connected with described first scrambler module;
Described second scrambler module is connected with described second forward error correction coding module, and described second forward error correction coding module is connected with described hardware decode module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420773123.4U CN204291042U (en) | 2014-12-09 | 2014-12-09 | A kind of high-speed light isolation one-way transmission apparatus |
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| CN201420773123.4U CN204291042U (en) | 2014-12-09 | 2014-12-09 | A kind of high-speed light isolation one-way transmission apparatus |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105141364A (en) * | 2015-09-17 | 2015-12-09 | 中国电子科技集团公司第八研究所 | Network isolation unidirectional fiber transmission system |
| CN106230507A (en) * | 2016-07-15 | 2016-12-14 | 蓝盾信息安全技术有限公司 | Utilize the method that light splitting feedback principle solves single guiding systems bite rate control |
| CN108988941A (en) * | 2018-07-24 | 2018-12-11 | 南方电网科学研究院有限责任公司 | Method for unidirectional data transmission |
| CN113904734A (en) * | 2021-10-22 | 2022-01-07 | 陕西航天技术应用研究院有限公司 | Covert channel one-way transmission system based on short-range terahertz communication |
| CN114374562A (en) * | 2022-01-14 | 2022-04-19 | 中国建设银行股份有限公司 | Data transmission method, device, equipment and computer storage medium |
| CN116054945A (en) * | 2023-04-06 | 2023-05-02 | 深圳华创芯光科技有限公司 | High-reliability unidirectional optical wireless communication data transmission system |
-
2014
- 2014-12-09 CN CN201420773123.4U patent/CN204291042U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105141364A (en) * | 2015-09-17 | 2015-12-09 | 中国电子科技集团公司第八研究所 | Network isolation unidirectional fiber transmission system |
| CN106230507A (en) * | 2016-07-15 | 2016-12-14 | 蓝盾信息安全技术有限公司 | Utilize the method that light splitting feedback principle solves single guiding systems bite rate control |
| CN108988941A (en) * | 2018-07-24 | 2018-12-11 | 南方电网科学研究院有限责任公司 | Method for unidirectional data transmission |
| CN113904734A (en) * | 2021-10-22 | 2022-01-07 | 陕西航天技术应用研究院有限公司 | Covert channel one-way transmission system based on short-range terahertz communication |
| CN114374562A (en) * | 2022-01-14 | 2022-04-19 | 中国建设银行股份有限公司 | Data transmission method, device, equipment and computer storage medium |
| CN116054945A (en) * | 2023-04-06 | 2023-05-02 | 深圳华创芯光科技有限公司 | High-reliability unidirectional optical wireless communication data transmission system |
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Address after: 300211 Meijiang Road, Tianjin, No. 4, No. Patentee after: Tianjin opto electronic information technology Limited by Share Ltd Address before: 300211 Meijiang Road, Tianjin, No. 4, No. Patentee before: TOEC Anchen Information Technology Co., Ltd. |