CN107968787A - A kind of rete mirabile signaling alarm systems of man-computer cooperation - Google Patents
A kind of rete mirabile signaling alarm systems of man-computer cooperation Download PDFInfo
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- CN107968787A CN107968787A CN201711280531.0A CN201711280531A CN107968787A CN 107968787 A CN107968787 A CN 107968787A CN 201711280531 A CN201711280531 A CN 201711280531A CN 107968787 A CN107968787 A CN 107968787A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
- H04L63/0209—Architectural arrangements, e.g. perimeter networks or demilitarized zones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
- H04L63/0227—Filtering policies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
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Abstract
The invention discloses a kind of alarm system that alarm signal is transmitted from concerning security matters network to non-concerning security matters network, including classified network end, transmission console and non-classified network end；Wherein, classified network end includes classified network coding module and classified network Prevention-Security module, transmitting console includes authentication module, information filtering module, transmission handover module and safety detecting alarm module, and non-classified network end includes decoding output module, dictionary module and non-classified network Prevention-Security module；Of the invention report realizes specific data coding in classified network, authentication, unidirectional delivery, transmission switching and identification output by man-computer cooperation, has the security of certain timeliness and the transmission of the rete mirabile of the less non-concerning security matters message informing of quantity and security maintenance warning message and timely sex chromosome mosaicism in solution concerning security matters network.
Description
Technical field
The present invention relates to network safety filed, specifically, is related specifically to one kind from concerning security matters network to non-concerning security matters network
Transmit the rete mirabile signaling alarm systems of the man-computer cooperation of alarm signal.
Background technology
While the rapid development of computer network offers convenience to China's E-government information, also bring greatly
Security risk.China's electronic government affair network system is divided into E-Government classified network and the non-classified network of E-Government, two networks
Safe class is different, is disposed and is run using physical isolation mode.According to using, unit and information data safe class are different, state
Information authorities of family have divided top-secret, secret and confidential for the E-Government classified network system of concerning security matters, in concerning security matters network
The links such as construction, operation and maintenance have all worked out tight standards and norms.Conventional Data Interchange Technology is forbidden in classified network
Used in network.Routine data switching technology is to set safety island, is related to by technologies such as physics isolation net gap (GAP), VPN to realize
Filtering and transmission of the close net to non-classified network information.This kind of Data Interchange Technology is all based on protocol conversion, once interaction
It is exactly that high-volume is transmitted, and in properties of product is made an effort in volume of transmitted data, transferring content can not be carried out secondary
Authentication vs. authorization, once being controlled by illegal program, substantial amounts of classified information is transferred to non-classified network, and spreads rapidly, causes
Great baneful influence.But still have in concerning security matters network the small non-classified information with certain timeliness of some data volumes need and
When be transferred to related personnel.Such as the documentary whip, again that special industry such as public security organs, procuratorial organs and people's court, Ji Deng departments produce in classified network
Want the information such as meeting, if be related to personnel it is relatively more in the case of, using the conventional means notified one by one, not only efficiency is low, even
Can also dally over one's work arrangement.In addition, in classified network operation maintenance management, the non-working time is most worried（Also tend to when being this
Between in section）There is equipment fault and burst security incident, if safety manager cannot be notified in time, and locate in time
Reason, will certainly cause great loss and information-leakage.The safe and secret high request of concerning security matters network and the lance for lacking technical guarantee
Shield is very prominent.There is presently no a kind of very reliable non-concerning security matters message transmission technology for classified network, from product
It is truly realized in structure only in concerning security matters network operation, verification processing only is carried out to a small amount of non-concerning security matters message.It can meet classified network
The basic need of the non-classified information rete mirabile transmission of network, and the code requirement of associated safety secrecy can be met.
The content of the invention
It is an object of the invention to for deficiency of the prior art, there is provided a kind of rete mirabile signal alarm system of man-computer cooperation
System, is used for realization information coding in concerning security matters network, Network Isolation, unidirectional delivery and transmission control, solves to have in concerning security matters network
Certain timeliness and the technical and peace of the rete mirabile of the less non-concerning security matters message informing of quantity and security maintenance warning message transmission
Full sex chromosome mosaicism.
Technical problem solved by the invention can be realized using following technical scheme：
A kind of rete mirabile signaling alarm systems of man-computer cooperation, including classified network end, transmission console and non-classified network end；
The classified network end includes classified network coding module and classified network Prevention-Security module；Wherein, the classified network coding mould
Block is used to encode warning information waiting for transmission；The classified network Prevention-Security module is used to protect classified network coding module
Data transfer between transmission console；
The transmission console, which includes authentication module, information filtering module, transmission handover module and safety detecting alarm, to be prevented
Imperial module；Wherein, the authentication module is used for identification and management, and information filtering module is used to manually dock received
The legitimacy of warning information after coding is judged, and will be judged that qualified warning information is transmitted to transmission and switched mould
Block, the transmission handover module are used in the data transmission procedure of warning information in encoded switching and classified network end and non-relate to
Close net end（300）Connection status, safety detecting alarm module be used in data transmission procedure carry out security intrusion detection report
Warn and defend；
The non-classified network end includes decoding output module, dictionary module and non-classified network Prevention-Security module；Wherein, the solution
Rear output code is identified for the warning information after docking received coding in code output module, and the dictionary module is used for will
The code of decoding output module output is matched with dictionary library, and is converted into warning information output, and the classified network is anti-safely
Imperial module is used to protect the data transfer between decoding output module, dictionary module and transmission console.
Further, the classified network coding module encodes warning information by replaceable encryption algorithm, can
The encryption algorithm of replacement is stored in ROM module.When classified network coding module receives external start signal, start to encode,
When receiving stop signal, it is stopped, does not work in guard mode usually；The non-classified network decodes output module
Classified network coding module inverse process.
Further, classified network end, transmission console and non-classified network end are installed in the closed shielding cases of 2U, institute
To state the closed shielding cases of 2U and use closed metal net system, all modules are wrapped in the metal mesh of non-corrosive material in cabinet,
Metal mesh is connected with chassis earth end and power cord shielded layer, and cabinet sets screw type grounding nut.
Further, classified network end, transmission console and non-classified network end power by power module, and power module is
220V AC powers, inside set direct current transducer and magnetic shield ring, export DC12V and 5V；External power receptacle is slot
Formula female connector, surrounding wrap up closed metal net, and plug is bar-shaped pin end, and power cord is three-wire system 0.75M2, central filler resistance
Combustion things, outside are metallic shield net, and most external is flame-resistant insulation rubber.
Further, the transmission handover module by controlling cable or optical fiber break-make realize with classified network coding module and
Decode the one-way transmission of output module；The physical arrangement of transmission handover module has one-way；For cable：Signal output is to open
Signal is measured in pass, wherein closure is " 1 ", is broken as " 0 ", each cable column uses three contact pin type junction blocks；For optical fiber：
Optical fiber break-make device uses closed emitting red light LED, is shone by transmission handover module control LED, wherein lighting up as " 1 ", closed
For " 0 ".
Further, the transmission handover module is attached by switching switch between classified network end and non-classified network end
The selection of object, synchronization can only connect one of object, it is ensured that the classified network end and non-in data transmission procedure
The physical isolation at classified network end.
Further, the classified network coding module uses standard RS232 serial communication protocols, and configuration interface uses 9 pin D
Type serial ports, " RXD " is received comprising No. 2, and No. 3 send " TXD ", No. 5 logic grounds " SGND ".
Further, the output form of the decoding output module includes audible and visible alarm and information is sent, wherein acousto-optic report
Alert to use two-wire system alarm, sound pressure level is more than 70dB, and information, which is sent, passes through external short message sending platform, and interface modes are mark
Will definitely extended-boundary-condition method file, coded format UTF-8, content structure is<Message>Information encoded content</
message>。
A kind of data transmission method of the rete mirabile signaling alarm systems of man-computer cooperation, includes the following steps：
1）In an initial condition, classified network end is connected with transmission console, and non-classified network end is disconnected with transmission console；
If warning information waiting for transmission is R, warning information R waiting for transmission obtains warning information after classified network coding module coding
Coded data S, coded data S transport is to transmitting console；
2）Logged in by authentication module, manually judge the legitimacy of coded data S received, pass through information filtering module
Filtering out does not allow the information Sn of sound cross network transmission in coded data S, and in coded data S the information Sy of sound cross network transmission will be allowed to beat
Bao Hou, sending allows the control signal of transmission to transmitting handover module；
3）After transmission handover module receives the control signal for allowing transmission, the letter for allowing sound cross network transmission is received in an initial condition
Sy is ceased, after receiving, classified network end and transmission console disconnect, and non-classified network end is connected with transmission console, will be received
The information Sy of permission sound cross network transmission send to non-classified network end, after being sent, classified network end, transmission console and non-concerning security matters
The connection status at net end is recovered to original state；
4）The received information Sy for allowing sound cross network transmission of decoding output module docking is decoded, and exports the code T of warning information,
Dictionary module is matched code T with dictionary library, and code T is converted into the warning information R for allowing transmission1。
Compared with prior art, the beneficial effects of the present invention are：
1st, information coding in concerning security matters network, Network Isolation, unidirectional delivery and transmission control are realized, solves and has in concerning security matters network
Have certain timeliness and the rete mirabile of the less non-concerning security matters message informing of quantity and security maintenance warning message transmission it is technical and
Safety issue.
2nd, Prevention-Security module is respectively configured in classified network end and non-classified network end, according to specific rule, it is allowed to or
The data of limitation transmission pass through.
3rd, authentication module, information filtering module and transmission handover module are configured in console is transmitted, it is ensured that knowing
After other identity, artificial secondary judgement data validation, and under conditions of tertiary-structure network is met, will be permitted by intranet and extranet switching
Perhaps data are passed uni-directionally to outer net.
4th, all modules are both placed in the closed shielding cases of 2U, are prevented by electromagnetic interference.
Brief description of the drawings
Fig. 1 is the structure diagram of the rete mirabile signaling alarm systems of man-computer cooperation of the present invention.
Fig. 2 is the schematic diagram of the rete mirabile signaling alarm systems of man-computer cooperation of the present invention.
Fig. 3 is the configuration interface diagram of classified network coding module of the present invention.
Embodiment
To make the technical means, the creative features, the aims and the efficiencies achieved by the present invention easy to understand, with reference to
Embodiment, the present invention is further explained.
Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of rete mirabile signaling alarm systems of man-computer cooperation of the present invention, including concerning security matters
Net end 100, transmission console 200 and non-classified network end 300；
The classified network end 100 includes classified network coding module 101 and classified network Prevention-Security module 102；Wherein, the concerning security matters
Net coding module 101 is used to encode warning information waiting for transmission；The classified network Prevention-Security module 102 is used to protect
200 data transfer between classified network coding module 101 and transmission console；
The transmission console 200 includes authentication module 201, information filtering module 202, transmission handover module 203 and peace
Full inspection observes and predicts alert defense module 204；Wherein, the authentication module 201 is used for identification and management, information filtering module
202 legitimacies for being used to manually dock the warning information after received coding are judged, and will judge qualified warning information
Transmit to transmission handover module 203, the transmission handover module 203 and be used for the data transfer of warning information in encoded
During switching and the connection status at classified network end 100 and non-classified network end 300, safety detecting alarm module 204 is used in number
Alarm and defend according to progress security intrusion detection in transmitting procedure；
The non-classified network end 300 includes decoding output module 301, dictionary module 302 and non-classified network Prevention-Security module
303；Wherein, rear output code is identified for the warning information after docking received coding in the decoding output module 301,
The dictionary module 302 is used to be matched the code that decoding output module 301 exports with dictionary library, and is converted into alarm signal
Breath output, the classified network Prevention-Security module 303 are used to protect between decoding output module, dictionary module and transmission console
Data transfer.
The classified network coding module encodes alarm signal, and by encryption algorithm one-time write and is stored in
In ROM module, encryption algorithm is replaceable；When classified network coding module receives external start signal, start to encode, work as reception
During to stop signal, it is stopped, does not work in guard mode usually；The non-classified network decoding output module is classified network
Coding module inverse process.
The classified network Prevention-Security module is that classified network coding module and transmission console are protected, and evades Intranet
Attack, it is ensured that safety.
The authentication module is that the identification and management of console are logged in for user.
Described information filtering module is after user identification confirmation, and secondary manually judgement, filtering are carried out to data validation
The information of sound cross network transmission is not allowed, and the information package that " permission " is transmitted is carried out transmission switching and prepared.
The transmission handover module is after receiving information filtering module and sending " permission " signal, receives " permission " and passes
Defeated data packet, it is automatic after user authorizes to disconnect console and the connection at classified network end（Isolate with classified network）, and will control
Platform is automatically switched to be connected with non-classified network end, delivers a packet to non-classified network end, after data sending to be confirmed from
Dynamic circuit breaker is driven console and is connected with non-classified network end, and console is returned to the original state being connected with classified network end.
The safety detecting alarm module is that security intrusion detection alarm is carried out in console operational process.
The dictionary module corresponds the code of non-classified network decoding output module output with dictionary library, most at last
The code information of non-classified network decoding output module output is converted into warning information output.
The non-classified network Prevention-Security module is that non-classified network decoder module, dictionary module and transmission console are carried out
Protection, evades outer net attack, it is ensured that safety.
The classified network coding module, information filtering module, transmission handover module, authentication module, safety inspection
Alarm module is surveyed, decoding output module, dictionary module, Prevention-Security module, power module are placed in the closed shielding cases of 2U
Interior, the closed shielding cases of 2U use closed metal net system, and all devices are wrapped in the metal mesh of non-corrosive material in babinet,
Metal mesh is connected with chassis earth end and power cord shielded layer, and cabinet sets screw type grounding nut.
The power module is 220V AC powers, and inside sets direct current transducer and magnetic shield ring, output DC12V and
5V；External power receptacle is insertion slot type female connector, and surrounding wraps up closed metal net, and plug is bar-shaped pin end, power cord three
Line 0.75M2, central filler flame retardant, outside are metallic shield net, and most external is flame-resistant insulation rubber.
Transmission handover module realizes that classified network coding module and non-classified network decode mould by controlling cable or optical fiber break-make
The one-way transmission of block；Physics one-way is formed in the design structure of conversion equipment；For cable：Signal output is believed for switching value
Number, wherein closure is " 1 ", it is broken as " 0 ", each cable column uses three contact pin type junction blocks；For optical fiber：Optical fiber leads to
Disconnected device uses closed emitting red light LED, is shone by transmission handover module control LED, wherein lighting up as " 1 ", closed as " 0 ".
Transmission handover module can be made choice by switching switch between classified network and non-classified network, and synchronization can only be with
One net is connected, it is ensured that the physical isolation of classified network and non-classified network in data transmission procedure.
Information filtering module carries out manually again the non-classified information that non-classified network is transferred to from classified network by user
Judge, filter classified information again, it is ensured that classified information safety.
Classified network coding module uses standard RS232 serial communication protocols, and configuration interface uses 9 pin D type serial ports, includes 2
Number receive " RXD ", No. 3 send " TXD ", No. 5 logic grounds " SGND ".
Decoding the output form of output module includes localization audible and visible alarm and information transmission, and wherein sound-light alarm uses two
Line alarm, sound pressure level are more than 70dB, and information, which is sent, passes through external short message sending platform, and interface modes are standard Extensible
Mark language XML file, coded format UTF-8, content structure are<Message>Information encoded content</message>.
The course of work of the present invention is as follows：
1）In an initial condition, classified network end is connected with transmission console, and non-classified network end is disconnected with transmission console；
If warning information waiting for transmission is R, warning information R waiting for transmission obtains warning information after classified network coding module coding
Coded data S, coded data S transport is to transmitting console；
2）Logged in by authentication module, manually judge the legitimacy of coded data S received, pass through information filtering module
Filtering out does not allow the information Sn of sound cross network transmission in coded data S, and in coded data S the information Sy of sound cross network transmission will be allowed to beat
Bao Hou, sending allows the control signal of transmission to transmitting handover module；
3）After transmission handover module receives the control signal for allowing transmission, the letter for allowing sound cross network transmission is received in an initial condition
Sy is ceased, after receiving, classified network end and transmission console disconnect, and non-classified network end is connected with transmission console, will be received
The information Sy of permission sound cross network transmission send to non-classified network end, after being sent, classified network end, transmission console and non-concerning security matters
The connection status at net end is recovered to original state；
4）The received information Sy for allowing sound cross network transmission of decoding output module docking is decoded, and exports the code T of warning information,
Dictionary module is matched code T with dictionary library, and code T is converted into the warning information R for allowing transmission1。
The basic principles, main features and the advantages of the invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (9)
1. the rete mirabile signaling alarm systems of a kind of man-computer cooperation, it is characterised in that including classified network end（100）, transmission console
（200）With non-classified network end（300）；
The classified network end（100）Including classified network coding module（101）With classified network Prevention-Security module（102）；Wherein, institute
State classified network coding module（101）For being encoded to warning information waiting for transmission；The classified network Prevention-Security module
（102）For protecting classified network coding module（101）Between transmission console（200）Data transfer；
The transmission console（200）Including authentication module（201）, information filtering module（202）, transmission handover module
（203）With safety detecting alarm defense module（204）；Wherein, the authentication module（201）For identification and pipe
Reason, information filtering module（202）Legitimacy for manually docking the warning information after received coding is judged, and will be sentenced
Fixed qualified warning information is transmitted to transmission handover module（203）, the transmission handover module（203）For in encoded
Warning information data transmission procedure in switching with classified network end（100）With non-classified network end（300）Connection status, safety
Detect alarm module（204）For carrying out security intrusion detection alarm in data transmission procedure and defending；
The non-classified network end（300）Including decoding output module（301）, dictionary module（302）With non-classified network Prevention-Security
Module（303）；Wherein, the decoding output module（301）For docking after the warning information after received coding is identified
Output code, the dictionary module（302）For output module will to be decoded（301）The code of output is matched with dictionary library,
And it is converted into warning information output, the classified network Prevention-Security module（303）For protecting decoding output module, dictionary module
Data transfer between transmission console.
2. the rete mirabile signaling alarm systems of man-computer cooperation according to claim 1, it is characterised in that：The classified network coding
Module encodes warning information by replaceable encryption algorithm, and replaceable encryption algorithm is stored in ROM module.
3. the rete mirabile signaling alarm systems of man-computer cooperation according to claim 1, it is characterised in that classified network end（100）、
Transmit console（200）With non-classified network end（300）It is installed in the closed shielding cases of 2U, the closed shield machines of 2U
Case uses closed metal net system, and all modules are wrapped in the metal mesh of non-corrosive material in cabinet, metal mesh and chassis earth
End is connected with power cord shielded layer, and cabinet sets screw type grounding nut.
4. the rete mirabile signaling alarm systems of man-computer cooperation according to claim 1, it is characterised in that classified network end（100）、
Transmit console（200）With non-classified network end（300）Power by power module, power module is 220V AC powers, internal
Direct current transducer and magnetic shield ring are set, export DC12V and 5V；External power receptacle is insertion slot type female connector, and surrounding is wrapped up
Closed metal net, plug are bar-shaped pin end, and power cord is three-wire system 0.75M2, central filler flame retardant, outside is metal screen
Net is covered, most external is flame-resistant insulation rubber.
5. the rete mirabile signaling alarm systems of man-computer cooperation according to claim 1, it is characterised in that the transmission switching mould
Block（203）Realized and classified network coding module by controlling cable or optical fiber break-make（101）With decoding output module（301）List
To transmission；Transmit handover module（203）Physical arrangement there is one-way；For cable：Signal output is on-off model, its
Middle closure is " 1 ", is broken as " 0 ", each cable column uses three contact pin type junction blocks；For optical fiber：Optical fiber break-make device
Using closed emitting red light LED, shone by transmission handover module control LED, wherein lighting up as " 1 ", closed as " 0 ".
6. the rete mirabile signaling alarm systems of man-computer cooperation according to claim 1, it is characterised in that the transmission switching mould
Block（203）By switching switch at classified network end（100）With non-classified network end（300）Between be attached the selection of object, it is same
Moment can only connect one of object, it is ensured that the classified network end in data transmission procedure（100）With non-classified network end
（300）Physical isolation.
7. the rete mirabile signaling alarm systems of man-computer cooperation according to claim 1, it is characterised in that the classified network coding
Module（101）Using standard RS232 serial communication protocols, configuration interface uses 9 pin D type serial ports, and " RXD " is received comprising No. 2, and 3
Number send " TXD ", No. 5 logic grounds " SGND ".
8. the rete mirabile signaling alarm systems of man-computer cooperation according to claim 1, it is characterised in that the decoding output mould
Block（301）Output form include audible and visible alarm and information and send, wherein sound-light alarm uses two-wire system alarm, and sound pressure level is big
In 70dB, information, which is sent, passes through external short message sending platform, and interface modes are standard extensible markup language XML file, are compiled
Code form is UTF-8, and content structure is<Message>Information encoded content</message>.
9. a kind of data transmission method of the rete mirabile signaling alarm systems of man-computer cooperation as claimed in claim 1, its feature exist
In including the following steps：
1）In an initial condition, classified network end（100）With transmission console（200）Connection, non-classified network end（300）Controlled with transmission
Platform processed（200）Disconnect；
If warning information waiting for transmission is R, warning information R waiting for transmission is through classified network coding module（101）Warned after coding
Notify the coded data S of breath, and coded data S transport is to transmitting console（200）；
Pass through authentication module（201）Log in, manually judge the legitimacy of coded data S received, pass through information filtering
Module（202）Filtering out does not allow the information Sn of sound cross network transmission in coded data S, and will allow sound cross network transmission in coded data S
Information Sy packing after, send allow transmission control signal extremely
Transmit handover module（203）；
Transmit handover module（203）After receiving the control signal for allowing transmission, receive allows sound cross network transmission in an initial condition
Information Sy, after receiving, classified network end（100）With transmission console（200）Disconnect, non-classified network end（300）With transmission
Console（200）Connection, the information Sy of the permission sound cross network transmission received is sent to non-classified network end（300）, it is sent
Afterwards, classified network end（100）, transmission console（200）With non-classified network end（300）Connection status recover to original state；
4）Decode output module（301）The information Sy for docking received permission sound cross network transmission is decoded, and exports warning information
Code T, dictionary module（302）Code T is matched with dictionary library, code T is converted into the warning information R for allowing transmission1。
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109547497A (en) * | 2019-01-16 | 2019-03-29 | 浙江乾行信息技术有限公司 | Signal transmission, alarm system between a kind of safety net |
| CN112714297A (en) * | 2021-01-16 | 2021-04-27 | 鸣飞伟业技术有限公司 | Data one-way transmission sharing switching system based on unpacking self-locking technology |
| CN113411335A (en) * | 2021-06-18 | 2021-09-17 | 滁州学院 | Network security monitoring system based on big data |
| CN114611400A (en) * | 2022-03-18 | 2022-06-10 | 河北金锁安防工程股份有限公司 | Early warning information screening method and system |
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| CN109547497A (en) * | 2019-01-16 | 2019-03-29 | 浙江乾行信息技术有限公司 | Signal transmission, alarm system between a kind of safety net |
| CN112714297A (en) * | 2021-01-16 | 2021-04-27 | 鸣飞伟业技术有限公司 | Data one-way transmission sharing switching system based on unpacking self-locking technology |
| CN113411335A (en) * | 2021-06-18 | 2021-09-17 | 滁州学院 | Network security monitoring system based on big data |
| CN113411335B (en) * | 2021-06-18 | 2022-03-08 | 滁州学院 | Network security monitoring system based on big data |
| CN114611400A (en) * | 2022-03-18 | 2022-06-10 | 河北金锁安防工程股份有限公司 | Early warning information screening method and system |
| CN114611400B (en) * | 2022-03-18 | 2023-08-29 | 河北金锁安防工程股份有限公司 | Early warning information screening method and system |
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Application publication date: 20180427 |
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