CN110768725A - Optical module and optical communication system for unidirectional data transmission - Google Patents
Optical module and optical communication system for unidirectional data transmission Download PDFInfo
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- CN110768725A CN110768725A CN201810847074.7A CN201810847074A CN110768725A CN 110768725 A CN110768725 A CN 110768725A CN 201810847074 A CN201810847074 A CN 201810847074A CN 110768725 A CN110768725 A CN 110768725A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/40—Transceivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/27—Arrangements for networking
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
- H04B10/85—Protection from unauthorised access, e.g. eavesdrop protection
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Abstract
The invention discloses an optical module and an optical communication system for unidirectional data transmission, wherein the optical module comprises: the optical generation end is used for acquiring data from a first network to form an optical signal; the optical splitting device is used for splitting the optical signal into a first path of optical signal and a second path of optical signal; a first optical receiving end, configured to receive the first optical signal and transmit the first optical signal to the first network; and the second optical receiving end is used for receiving the second path of optical signal and transmitting the second path of optical signal to a second network. The invention has the following advantages: simple structure and high security.
Description
Technical Field
The invention relates to the technical field of communication, in particular to an optical module and an optical communication system for unidirectional data transmission.
Background
With the continuous expansion of network application range and the continuous deepening of network application technology, network users are more aware of the importance of network security, and simultaneously, various network security manufacturers continuously release new products to adapt to the increasing network security requirements of users. For example, government security-related networks, military industry, electric power and other industries contain a large amount of sensitive information and security-related data, the security-related data cannot flow into the network with the lower security level than the government security-related network, but the units or the industries generally need to acquire the data from the network with the lower security level. Most of the related technologies adopt a manual disk copying mode, but the manual disk copying mode has potential safety hazards and low efficiency.
Disclosure of Invention
The present invention is directed to solving at least one of the above problems.
Therefore, a first object of the present invention is to provide an optical module for unidirectional data transmission, which can realize unidirectional data transmission between a high-density network and a low-density network.
A second objective of the present invention is to provide an optical communication system, which enables a high-density network side to acquire data from a low-density network side in a single direction.
In order to achieve the above object, an embodiment of the present invention discloses an optical module for unidirectional data transmission, including: the optical transmitting terminal is used for acquiring data from the first network terminal to form an optical signal; the optical splitting device is used for splitting the optical signal into a first path of optical signal and a second path of optical signal; the first optical receiving end is used for receiving the first path of optical signal and transmitting the first path of optical signal to a second network end; and the second optical receiving end is used for receiving the second path of optical signal and transmitting the second path of optical signal to the first network end.
According to the optical module for unidirectional data transmission, two paths of signals are formed through the optical splitting device, one path of signals is transmitted to the high-density network, the other path of signals is transmitted to the low-density network, and therefore the high-density network can acquire data from the low-density network in a unidirectional mode.
In addition, the optical module for unidirectional data transmission according to the above embodiment of the present invention may further have the following additional technical features:
optionally, the light splitting device is a light splitting filter.
Optionally, the light splitting device is a light splitting prism.
In order to achieve the above object, an embodiment of the present invention discloses an optical communication system, including a first network end, a second network end, and an optical module for unidirectional data transmission, where the optical module for unidirectional data transmission includes: the optical transmitting terminal is used for acquiring data from the first network terminal to form an optical signal; the optical splitting device is used for splitting the optical signal into a first path of optical signal and a second path of optical signal; the first optical receiving end is used for receiving the first path of optical signal and transmitting the first path of optical signal to the second network end; the second optical receiving end is used for receiving the second path of optical signal and transmitting the second path of optical signal to the first network end; the optical module for unidirectional data transmission is used for controlling the second network end to acquire data from the first network end in a unidirectional manner.
According to the optical communication system provided by the embodiment of the invention, two paths of signals are formed through the optical splitting device, one path of signal is transmitted to the high-density network, and the other path of signal is transmitted to the low-density network, so that the high-density network acquires data from the low-density network in a single direction
In addition, the optical communication system according to the above embodiment of the present invention may further have the following additional technical features:
optionally, the light splitting device is a light splitting filter.
Optionally, the light splitting device is a light splitting prism.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a block diagram of an optical module for unidirectional data transmission according to an embodiment of the present invention;
fig. 2 is a block diagram of an optical communication system according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
These and other aspects of embodiments of the invention will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the invention may be practiced, but it is understood that the scope of the embodiments of the invention is not limited correspondingly. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
The invention is described below with reference to the accompanying drawings.
Fig. 1 is a block diagram of an optical module for unidirectional data transmission according to an embodiment of the present invention. As shown in fig. 1, the optical module for unidirectional data transmission of the present invention includes a light emitting end 110, a light splitting device 120, a first light receiving end 130, and a second light receiving end 140.
The optical transmitting end 110 is configured to obtain data from the first network end to form an optical signal. In an example of the present invention, the first network is a network with low security level, such as the internet where a common user can obtain information.
The optical splitting device 120 is configured to split the optical signal into a first optical signal and a second optical signal.
In an embodiment of the present invention, the light splitting device 120 is a light splitting filter, and the light splitting filter has the advantages of low cost and good light splitting effect. And splitting the optical signal into two paths by adopting a light splitting filter to obtain a first path of optical signal and a second path of optical signal.
In another embodiment of the present invention, the light splitting device 120 is a light splitting prism, which has the advantages of low cost and good light splitting effect. And splitting the optical signal into two paths by using a light splitting prism to obtain a first path of optical signal and a second path of optical signal.
The first optical receiving end 130 is configured to receive the first optical signal and transmit the first optical signal to the second network. In one example of the invention, the second network is a higher security level network than the first network, such as a government security network, a military security network, or other networks requiring information to be secured.
The second optical receiving end 140 is configured to receive the second optical signal and transmit the second optical signal to the first network end.
According to the optical module for unidirectional data transmission, two paths of signals are formed through the optical splitting device, one path of signals is transmitted to the high-density network, the other path of signals is transmitted to the low-density network, and therefore the high-density network can acquire data from the low-density network in a unidirectional mode.
Fig. 2 is a block diagram of an optical communication system according to an embodiment of the present invention. As shown in fig. 2, the optical communication system of the present invention includes a first network 210, a second network 230, and an optical module 220 for unidirectional data transmission. The optical module 220 for unidirectional data transmission is used to control the second network 230 to acquire data 210 from the first network in a unidirectional manner.
In an example of the present invention, the first network 210 is a network with low security level, such as the internet through which a general user can obtain information.
The optical module 220 for unidirectional data transmission includes a light emitting end 221, a light splitting device 222, a first light receiving end 223 and a second light receiving end 224.
The optical transmitting end 221 is used for acquiring data from the first network end to form an optical signal.
The optical splitter 222 is configured to split the optical signal into a first optical signal and a second optical signal. In an embodiment of the present invention, the light splitting device 222 is a light splitting filter, and the light splitting filter has the advantages of low cost and good light splitting effect. And splitting the optical signal into two paths by adopting a light splitting filter to obtain a first path of optical signal and a second path of optical signal. In another embodiment of the present invention, the light splitting device 222 is a light splitting prism, which has the advantages of low cost and good light splitting effect. And splitting the optical signal into two paths by using a light splitting prism to obtain a first path of optical signal and a second path of optical signal.
The first optical receiving end 223 is configured to receive the first optical signal and transmit the first optical signal to the second network 230. In one example of the present invention, the second network 230 is a higher security network than the first network 210, such as a government security network, a military security network, or other networks requiring information security.
The second optical receiving end 224 is configured to receive the second optical signal and transmit the second optical signal to the first network end.
According to the optical module for unidirectional data transmission, two paths of signals are formed through the optical splitting device, one path of signals is transmitted to the high-density network, the other path of signals is transmitted to the low-density network, and therefore the high-density network can acquire data from the low-density network in a unidirectional mode.
In addition, other configurations and functions of the optical module and the optical communication system for unidirectional data transmission according to the embodiments of the present invention are known to those skilled in the art, and are not described in detail for reducing redundancy.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (6)
1. An optical module for unidirectional data transmission, comprising:
the optical transmitting terminal is used for acquiring data from the first network terminal to form an optical signal;
the optical splitting device is used for splitting the optical signal into a first path of optical signal and a second path of optical signal;
the first optical receiving end is used for receiving the first path of optical signal and transmitting the first path of optical signal to a second network end;
and the second optical receiving end is used for receiving the second path of optical signal and transmitting the second path of optical signal to the first network end.
2. A light module for unidirectional data transmission according to claim 1, characterized in that the light splitting means is a light splitting filter.
3. An optical module for unidirectional data transmission according to claim 1, wherein the beam splitting device is a beam splitting prism.
4. An optical communication system, comprising a first network terminal, a second network terminal and an optical module for unidirectional data transmission, wherein the optical module for unidirectional data transmission comprises:
the optical transmitting terminal is used for acquiring data from the first network terminal to form an optical signal;
the optical splitting device is used for splitting the optical signal into a first path of optical signal and a second path of optical signal;
the first optical receiving end is used for receiving the first path of optical signal and transmitting the first path of optical signal to the second network end;
the second optical receiving end is used for receiving the second path of optical signal and transmitting the second path of optical signal to the first network end;
the optical module for unidirectional data transmission is used for controlling the second network end to acquire data from the first network end in a unidirectional manner.
5. The optical communication system according to claim 4, wherein the optical splitting means is an optical splitting filter.
6. The optical communication system of claim 4, wherein the beam splitting device is a beam splitting prism.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810847074.7A CN110768725A (en) | 2018-07-27 | 2018-07-27 | Optical module and optical communication system for unidirectional data transmission |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810847074.7A CN110768725A (en) | 2018-07-27 | 2018-07-27 | Optical module and optical communication system for unidirectional data transmission |
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| CN110768725A true CN110768725A (en) | 2020-02-07 |
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| CN103714151A (en) * | 2013-12-26 | 2014-04-09 | 北京锐安科技有限公司 | One-way optical gate and method for carrying out data synchronizing between heterogeneous databases |
| CN205017358U (en) * | 2015-09-11 | 2016-02-03 | 北京天行网安信息技术有限责任公司 | Unidirectionally isolated optical gate |
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2018
- 2018-07-27 CN CN201810847074.7A patent/CN110768725A/en active Pending
Patent Citations (6)
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| CN1318236A (en) * | 1998-07-16 | 2001-10-17 | 特拉比姆网络公司 | Optical communication system for transmitting and receiving data through free space |
| JP2005295464A (en) * | 2004-04-05 | 2005-10-20 | Nippon Telegr & Teleph Corp <Ntt> | Light transmission system |
| US8189785B2 (en) * | 2008-09-30 | 2012-05-29 | The Mitre Corporation | Generating identical numerical sequences utilizing a physical property and secure communication using such sequences |
| CN202385106U (en) * | 2011-12-15 | 2012-08-15 | 北京天行网安信息技术有限责任公司 | Unidirectionally isolated optical gate |
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