CN104125227A - Physical isolation cross-network unidirectional optical transmission device and transmission method - Google Patents
Physical isolation cross-network unidirectional optical transmission device and transmission method Download PDFInfo
- Publication number
- CN104125227A CN104125227A CN201410367561.5A CN201410367561A CN104125227A CN 104125227 A CN104125227 A CN 104125227A CN 201410367561 A CN201410367561 A CN 201410367561A CN 104125227 A CN104125227 A CN 104125227A
- Authority
- CN
- China
- Prior art keywords
- mainboard
- electric transducer
- transceiver module
- mode optics
- optical transceiver
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Optical Communication System (AREA)
Abstract
The invention discloses a physical isolation cross-network unidirectional optical transmission device and transmission method and belongs to the field of computer safe communication. The device comprises a first single-mode photoelectric converter connected with a first mainboard, a second single-mode photoelectric converter connected with a second mainboard, and a third single-mode photoelectric converter connected with a third mainboard. The transmitting end/receiving end of the first single-mode photoelectric converter is connected with the receiving end/transmitting end of the second single-mode photoelectric converter; the transmitting end of the first single-mode photoelectric converter adopts photocopy and is connected with the transmitting end of an optical transceiver module through single-mode fiber, and the receiving end of the optical transceiver module is connected with the receiving end of the third single-mode photoelectric converter through single-mode fiber. The invention also discloses the transmission method of the physical isolation cross-network unidirectional optical transmission device. According to the physical isolation cross-network unidirectional optical transmission device and transmission method, both ends of the optical transceiver module are provided with the single-mode fiber, and the middle portion of the optical transceiver module is cut out without connection, so that the physical isolation cross-network unidirectional optical transmission device is transpired, data cannot transmitted inversely and avoids any physical connection, and further safe data transmission can be guaranteed and the transmission speed can be improved.
Description
Technical field
The present invention relates to a kind of physical isolation inter-network Unidirectional light transmitting device and transmission method, is specifically a kind of physical isolation inter-network Unidirectional light transmitting device and transmission method that can be applicable to transmission of video, belongs to the computer security communications field.
Background technology
Traditional compunication is all communication protocol Network Based, connects by wired or wireless network, and communication security cannot definitely ensure, some to the exigent environment of communication security under, cannot be protected.Arise at the historic moment based on communication security demand shutter technology.Optical gate, be a kind of by development on safety isolation network gate basis form, unidirectional unidirectional isolation software and hardware system based on light, be mainly used in the exchanges data scene of the network high to security requirement, between concerning security matters network and non-concerning security matters network, between industry Intranet and public network.
At present, the transmission of general supporting database of traditional optical gate, file transfer, realize by the agreement such as FTP, SAMBA, but it can not video data real-time Transmission, has restricted its extensive use in security fields.
Summary of the invention
Technical problem to be solved by this invention is to overcome the defect of prior art, and a kind of physical isolation inter-network Unidirectional light transmitting device and transmission method of energy real-time Transmission video data is provided.
In order to solve the problems of the technologies described above, physical isolation inter-network Unidirectional light transmitting device provided by the invention, comprises the first single-mode optics electric transducer being connected with the first mainboard, the second single-mode optics electric transducer being connected with the second mainboard and the 3rd single-mode optics electric transducer being connected with the 3rd mainboard; Transmitting terminal/the receiving terminal of the first single-mode optics electric transducer is connected with the receiving terminal/transmitting terminal of the second single-mode optics electric transducer; The transmitting terminal of the first single-mode optics electric transducer adopts photocopy and connects the transmitting terminal of optical transceiver module by monomode fiber, and the receiving terminal of optical transceiver module connects the receiving terminal of the 3rd single-mode optics electric transducer by monomode fiber.
In the present invention, optical transceiver module comprises body, and body is enclosed construction, and the two ends of body are respectively equipped with transmitting terminal and receiving terminal, and transmitting terminal and receiving terminal are located along the same line.
In the present invention, on the body of optical transceiver module, offer window, window adopts transparent material sealing.
The present invention also provides a kind of transmission method of physical isolation inter-network Unidirectional light transmitting device, comprises the following steps:
1), the first mainboard is transferred to the second single-mode optics electric transducer by the data flow of acquisition by the first single-mode optics electric transducer, copy transmissions is to optical transceiver module simultaneously, the second mainboard sends ACK answer signal to the first mainboard after receiving data flow, sets up proper communication;
2), the first mainboard receives that the follow-up supervention of ACK answer signal of the second mainboard send data flow, data flow is transferred to the second single-mode optics electric transducer through the first single-mode optics electric transducer, copy transmissions is to optical transceiver module simultaneously, optical transceiver module is by data stream transmitting to the three single-mode optics electric transducers, after the 3rd single-mode optics electric transducer conversion, give the 3rd mainboard by data stream transmitting, thereby realize the one-way transmission of data.
Beneficial effect of the present invention is: (1), the present invention adopt monomode fiber at the two ends of optical transceiver module, be connected with optical-electrical converter respectively, centre is not blocked and is connected, optical transceiver module is transparent visible, make data irreversible to transmission, ensureing that data have improved its transmission speed between intranet and extranet in safe transmission, be suitable for the transmission of the high amount of traffics such as video, expand the application of optical gate; (2), the present invention is simple in structure, be easy to realize.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is optical transceiver module structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Physical isolation inter-network Unidirectional light transmitting device of the present invention can be by outer net (low close net) video data stream actual time safety transmitting to Intranet (highly dense net).
As shown in Figure 1, the present invention includes 3 mainboards, 3 single-mode optics electric transducers and optical transceiver module, wherein mainboard A adopts two gigabit network interfaces, and the LAN2 mouth of mainboard A connects outer net, and the LAN1 mouth of mainboard A connects optical-electrical converter A; The LAN1 mouth of mainboard B connects optical-electrical converter B, and the TX of optical-electrical converter A connects the RX of optical-electrical converter B, and the TX of optical-electrical converter B connects the RX of optical-electrical converter A.The TX of optical-electrical converter A adopts photocopy simultaneously and connects the transmitting terminal of optical transceiver module by monomode fiber, optical transceiver module receiving terminal is connected to the RX of optical-electrical converter C by monomode fiber, optical-electrical converter C is connected to the LAN1 mouth of mainboard C, the LAN2 mouth of mainboard C is connected to Intranet, and mainboard C adopts two gigabit network interfaces.The configuration of the LAN1 mouth of mainboard C is identical with the configuration of the LAN1 mouth of mainboard B.
As shown in Figure 2, in the present invention, optical transceiver module comprises that body, body two ends are respectively equipped with transmitting terminal and receiving terminal, and transmitting terminal and receiving terminal are located along the same line, and aims at and on same straight line with the monomode fiber that ensures to be connected with two ends; Body is enclosed construction, the window of opening on body, and window adopts glass or other transparent materials to seal, so that optical transceiver module working condition is observed, without any physical connection, transparent visible in the middle of optical transceiver module.
The transmission that physical isolation inter-network Unidirectional light transmitting device of the present invention is supported standard RTSP real time video data stream and all types file, realizes multipath concurrence video flowing inter-network and dynamically regenerates, the physical isolation inter-network Unidirectional light transmitting device application of expansion.
Transmitting procedure of the present invention is:
1) video flowing that, mainboard A transmits the outer net of acquisition is transferred to optical-electrical converter B after changing by optical-electrical converter A, optical-electrical converter B will be transferred to mainboard B after the light signal conversion receiving, mainboard B sends ACK answer signal through optical-electrical converter B to mainboard A after receiving video flowing, sets up proper communication; Simultaneously, optical-electrical converter A arrives video streaming through monomode fiber the transmitting terminal of optical transceiver module by photocopy, the receiving terminal of optical transceiver module will receive that optical signal transmission is to optical-electrical converter C receiving terminal again, optical-electrical converter C will be transferred to mainboard C after light signal conversion, mainboard C video streaming is to Intranet, due to be one-way transmission herein mainboard C cannot send ACK answer signal to mainboard A;
2), mainboard A receives that the follow-up supervention of ACK answer signal of mainboard B send video flowing, video flowing is transferred to optical-electrical converter B after optical-electrical converter A conversion, after conversion, is transferred to mainboard B; Be transferred to the transmitting terminal of optical transceiver module by photocopy simultaneously, the receiving terminal of optical transceiver module will receive that optical signal transmission is to optical-electrical converter C receiving terminal again, optical-electrical converter C will be transferred to mainboard C after light signal conversion, mainboard C video streaming is to Intranet, thereby realizes the one-way transmission between the intranet and extranet of video data.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, can also make under the premise without departing from the principles of the invention some improvement, and these improve and also should be considered as protection scope of the present invention.
Claims (4)
1. a physical isolation inter-network Unidirectional light transmitting device, is characterized in that: comprise the first single-mode optics electric transducer being connected with the first mainboard, the second single-mode optics electric transducer being connected with the second mainboard and the 3rd single-mode optics electric transducer being connected with the 3rd mainboard; Transmitting terminal/the receiving terminal of described the first single-mode optics electric transducer is connected with the receiving terminal/transmitting terminal of the second single-mode optics electric transducer; The transmitting terminal of described the first single-mode optics electric transducer adopts photocopy and connects the transmitting terminal of optical transceiver module by monomode fiber, and the receiving terminal of optical transceiver module connects the receiving terminal of the 3rd single-mode optics electric transducer by monomode fiber.
2. physical isolation inter-network Unidirectional light transmitting device according to claim 1, it is characterized in that: described optical transceiver module comprises body, described body is enclosed construction, and the two ends of body are respectively equipped with transmitting terminal and receiving terminal, and transmitting terminal and receiving terminal are located along the same line.
3. physical isolation inter-network Unidirectional light transmitting device according to claim 2, is characterized in that: on the body of described optical transceiver module, offer window, window adopts transparent material sealing.
4. a transmission method that adopts the physical isolation inter-network Unidirectional light transmitting device described in claims 1 to 3 any one, is characterized in that comprising the following steps:
1), the first mainboard is transferred to the second single-mode optics electric transducer by the data flow of acquisition by the first single-mode optics electric transducer, copy transmissions is to optical transceiver module simultaneously, the second mainboard sends ACK answer signal to the first mainboard after receiving data flow, sets up proper communication;
2), the first mainboard receives that the follow-up supervention of ACK answer signal of the second mainboard send data flow, data flow is transferred to the second single-mode optics electric transducer through the first single-mode optics electric transducer, copy transmissions is to optical transceiver module simultaneously, optical transceiver module is by data stream transmitting to the three single-mode optics electric transducers, after the 3rd single-mode optics electric transducer conversion, give the 3rd mainboard by data stream transmitting, thereby realize the one-way transmission of data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410367561.5A CN104125227A (en) | 2014-07-30 | 2014-07-30 | Physical isolation cross-network unidirectional optical transmission device and transmission method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410367561.5A CN104125227A (en) | 2014-07-30 | 2014-07-30 | Physical isolation cross-network unidirectional optical transmission device and transmission method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104125227A true CN104125227A (en) | 2014-10-29 |
Family
ID=51770491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410367561.5A Pending CN104125227A (en) | 2014-07-30 | 2014-07-30 | Physical isolation cross-network unidirectional optical transmission device and transmission method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104125227A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106230789A (en) * | 2016-07-19 | 2016-12-14 | 杭州维尔信息技术有限公司 | A kind of data transmission method and equipment |
| 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 |
| CN110830760A (en) * | 2018-08-10 | 2020-02-21 | 北京仁光科技有限公司 | Secure network data interaction system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1976259A (en) * | 2006-11-20 | 2007-06-06 | 中网信息技术有限公司 | Directive non-feedback optical fiber one-way transmitting physica isolating method |
| CN101800777A (en) * | 2010-03-05 | 2010-08-11 | 胡钢 | Open network data acquisition method and device, and monitoring system based on device |
| CN102523436A (en) * | 2011-11-30 | 2012-06-27 | 杭州海康威视数字技术股份有限公司 | Transmission terminal, receiving terminal, multi-channel video optical fiber transmission system and multi-channel video optical fiber transmission method |
| CN202949426U (en) * | 2012-11-21 | 2013-05-22 | 北京泽华源科技有限公司 | Optical fiber receiving device |
| CN203984455U (en) * | 2014-07-30 | 2014-12-03 | 刘鹏 | Physical isolation inter-network Unidirectional light transmitting device |
-
2014
- 2014-07-30 CN CN201410367561.5A patent/CN104125227A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1976259A (en) * | 2006-11-20 | 2007-06-06 | 中网信息技术有限公司 | Directive non-feedback optical fiber one-way transmitting physica isolating method |
| CN101800777A (en) * | 2010-03-05 | 2010-08-11 | 胡钢 | Open network data acquisition method and device, and monitoring system based on device |
| CN102523436A (en) * | 2011-11-30 | 2012-06-27 | 杭州海康威视数字技术股份有限公司 | Transmission terminal, receiving terminal, multi-channel video optical fiber transmission system and multi-channel video optical fiber transmission method |
| CN202949426U (en) * | 2012-11-21 | 2013-05-22 | 北京泽华源科技有限公司 | Optical fiber receiving device |
| CN203984455U (en) * | 2014-07-30 | 2014-12-03 | 刘鹏 | Physical isolation inter-network Unidirectional light transmitting device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106230789A (en) * | 2016-07-19 | 2016-12-14 | 杭州维尔信息技术有限公司 | A kind of data transmission method and equipment |
| 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 |
| CN110515575B (en) * | 2018-05-21 | 2021-08-24 | 北京仁光科技有限公司 | Apparatus and method for interacting computers within a subnet |
| CN110830760A (en) * | 2018-08-10 | 2020-02-21 | 北京仁光科技有限公司 | Secure network data interaction system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205320075U (en) | Multi -service digit optical transmitter and receiver based on optic fibre ethernet | |
| CN204291042U (en) | A kind of high-speed light isolation one-way transmission apparatus | |
| CN104125227A (en) | Physical isolation cross-network unidirectional optical transmission device and transmission method | |
| CN201307864Y (en) | Data isolating and forwarding system based on 1394 interface | |
| CN103986984A (en) | Access node device and system based on gigabit-Ethernet passive optical network | |
| CN105391613A (en) | Hydropower station Ethernet-type security isolation device inside-outside universal data bridge | |
| CN102208982A (en) | Isolation gateway | |
| CN103067238A (en) | Data collection method compatible with MODBUS bus | |
| CN103763465A (en) | Network camera and network video monitoring system | |
| CN203984455U (en) | Physical isolation inter-network Unidirectional light transmitting device | |
| CN201623716U (en) | Unidirectional transmission system with feedback function | |
| CN203872255U (en) | Network camera | |
| CN103532631A (en) | Pluggable GPON ONU (Gigabit Passive Optical Network Optical Network Unit) for local area network switch system | |
| CN205510322U (en) | Device based on optical ethernet interface transfer serial ports data | |
| CN102523067B (en) | Industrial-grade optical transmission system | |
| CN202395859U (en) | High definition network camera based on passive network communication | |
| CN104022829B (en) | A kind of center-side list ethernet port converges the Ethernet optical transmission chain of output | |
| CN204215267U (en) | Based on the valve Room intelligent inspection robot communication device of optical-fibre communications | |
| CN204168326U (en) | The network of web camera shares isolator | |
| CN106301917A (en) | A kind of IAD data and path protection equipment | |
| CN202679373U (en) | Ethernet optical network terminal equipment | |
| CN204119237U (en) | 2GX-4GE management type fiber optical transceiver | |
| CN203522778U (en) | Integrated access device | |
| CN204119238U (en) | The two light mouth fiber optical transceiver of 2FX-4FE | |
| CN201707436U (en) | Radar networking detection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141029 |
|
| RJ01 | Rejection of invention patent application after publication |