CN103186743B - A kind of multi-network system data transmission device and method - Google Patents
A kind of multi-network system data transmission device and method Download PDFInfo
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- CN103186743B CN103186743B CN201210341514.4A CN201210341514A CN103186743B CN 103186743 B CN103186743 B CN 103186743B CN 201210341514 A CN201210341514 A CN 201210341514A CN 103186743 B CN103186743 B CN 103186743B
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Abstract
The present invention is applicable to data security and exchanges field, provides a kind of multi-network system data transmission device and method; Multi-network system data transmission device comprises multiple physically-isolated main frame, serial device Hot-Swap and Control Unit and serial storage; The built-in data Bridge Processing Unit of each main frame, a main frame is only connected with a network system, and different main frames connects different network systems.This device achieves data security conduction in the physically-isolated situation of maintenance network system, supports that a network system is to one or more network system conduct data; Original uncorrected data and the serial storage of conduction do not have harmfulness; Serial storage can format also switchback and be connected to main frame originally after often completing a secondary data conduction task; Security is high.Serial device Hot-Swap and Control Unit combines by low and high level the physical thermal plug and automatic switchover that control serial storage, and switch speed is fast.
Description
Technical field
The invention belongs to data security and exchange field, particularly relate to a kind of multi-network system data transmission device and method.
Background technology
The conduction of multiple-network system data security appears at the military, the earliest in order to solve safety problem when concerning security matters network system is connected with public network system.Along with the development of computer network system and electronic information, high safety network system under various environment and the demand of carrying out exchanges data between other lower security network system day by day obvious, the safety conduction how realizing carrying out data between the network system of different level of security is the major issue of information security field always.
In environment the strictest, need the network system environment exchanging data should be completely physically-isolated.In order to achieve the above object, traditional mode is: in the network system environment of isolation, use mobile data memory or storage medium transferring data by artificial.But artificial mode inefficiency, operates also very inconvenient.And artificial mode is uncontrollable, such as have a mind to or misoperation and other factors all can cause divulging a secret of confidential data unintentionally.And be that data transmission is decided by the design of program based on the various ubiquitous safety problem of gateway equipment that is publicly-owned or proprietary protocol, safety and reliability checking can not get ensureing.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of multi-network system data transmission device, is intended to solve present technology by artificial mode inefficiency, inconvenient operation and security, the problem that reliability is low.
The embodiment of the present invention realizes like this, a kind of multi-network system data transmission device, the serial device Hot-Swap and Control Unit comprising multiple physically-isolated main frame, be all connected with multiple main frame, and the serial storage be connected with described serial device Hot-Swap and Control Unit, the built-in data Bridge Processing Unit of each main frame, each main frame is only connected with a network system, and different main frames connects different network systems, during work, when a network system needs to another one or multiple network system conduct data, this network system then will need the data of conduction to carry out processing by the Data Bridge processing unit of connected main frame and after writing described serial storage, the low and high level exported by the GPIO of main frame is triggered described serial device Hot-Swap and Control Unit and controls described serial storage and current hosts disconnects and is connected to another one main frame on physical circuit, the Data Bridge processing unit of another one main frame reads data and is written in the network system be connected from serial storage, described serial storage is then formatd and switchback is connected to main frame originally after write work completes, if this subtask also needs the data this being written to described serial storage to conduct to other network system, do not need to format described serial storage and switchback and be connected to main frame originally, and the low and high level exported by the GPIO of main frame again triggers described serial device Hot-Swap and Control Unit controls described serial storage and disconnect on physical circuit with current hosts and be connected to another one main frame again and be connected and conduct data, the rest may be inferred, until complete when after time all tasks of needs conduction, format described serial storage again and switchback is connected to main frame originally.
Further, described serial device Hot-Swap and Control Unit with between multiple main frame, described serial device Hot-Swap and Control Unit is all connected by serial data line with between serial storage.
Further, by GPIO(General Purpose Input/Output between described serial device Hot-Swap and Control Unit and multiple main frame, universal input exports) connection of level signal line.
Further, described serial device Hot-Swap and Control Unit can be: SATA(Serial AdvancedTechnology Attachment, Serial Advanced Technology Attachment) equipment hot swap control module, USB(Universal Serial Bus, USB (universal serial bus)) equipment hot swap control module or IEEE1394 equipment hot swap control module.
Further, described serial device Hot-Swap and Control Unit comprises the MUX chip and peripheral circuit thereof of supporting serial device.
Further, described serial storage comprises: the flash disk of the CD writer of serial line interface, the hard disk of serial line interface, serial line interface, SD card (the Secure Digital Memory Card of serial line interface, safe digital card) serial CF card (Compact Flash Card, the compact flash card) read write line of read write line or interface.
Further, described multiple main frames, serial device Hot-Swap and Control Unit, serial storage are all placed in a cabinet.
The present invention also provides a kind of multiple-network system data transmission method adopting above-mentioned device to realize, and comprises the steps:
Data Bridge processing unit in S1: the first main frame obtains the data needing conduction from the first network system that it connects, then becomes original uncorrected data block (Raw Data Blocks) after needing the data of conduction to carry out format (Clear All Formats) and compression (Compress) process;
S2: described original uncorrected data block is written in described serial storage;
S3: the low and high level exported by the GPIO of main frame is triggered described serial device Hot-Swap and Control Unit and controls described serial storage and the first main frame disconnects and is connected to the second main frame on physical circuit;
Data Bridge processing unit in S4: the second main frame reads the original uncorrected data block in described serial storage and carries out reduction treatment, writes in the second network system be connected with the second main frame afterwards again;
Data Bridge processing unit format (Formatting) described serial storage in S5: the second main frame, the low and high level exported by the GPIO of main frame is afterwards triggered described serial device Hot-Swap and Control Unit and controls described serial storage and the second main frame and on physical circuit, disconnect also switchback be connected to the first main frame;
S6: if this subtask also needs the original uncorrected data block this being written to described serial storage to conduct to other network system, does not need to perform step S5, and the low and high level exported by the GPIO of main frame again triggers described serial device Hot-Swap and Control Unit controls described serial storage and the second main frame disconnects and is connected to the 3rd main frame on physical circuit
Data Bridge processing unit in S7: the three main frame reads the original uncorrected data block in described serial storage and carries out reduction treatment, writes in the 3rd network system be connected with the 3rd main frame afterwards again;
S8: the rest may be inferred, format described serial storage again until complete after the original uncorrected data block this being written to described serial storage conducts to network system N predetermined in advance, the low and high level exported by the GPIO of main frame is more afterwards triggered described serial device Hot-Swap and Control Unit and controls described serial storage and the n-th main frame and to disconnect on physical circuit and switchback is connected to the first main frame.
In embodiments of the present invention, multi-network system data transmission device can realize data conduction in the physically-isolated situation of maintenance network system; Original Naked data and the serial storage of conduction do not have harmfulness, the data of conduction become original uncorrected data block, do not have the possibility of automatic execution instruction after going format and compression process, and serial storage is the operation that physics static device does not exist computer program and instruction.In addition, serial storage can format and switchback is connected to main frame originally again after completing data conduction task each time; To ensure in conduct data process between credit environment and non-credit environment in non-credit network system virus and malicious code forever possibility do not enter credit environment, security is high.Serial device Hot-Swap and Control Unit is that the low and high level combination exported by the GPIO of main frame is controlled the physical thermal plug of serial storage and automatically switches, and switch speed is fast.
Accompanying drawing explanation
Fig. 1 is the modular structure schematic diagram of the multi-network system data transmission device that the embodiment of the present invention provides;
Fig. 2 is the MUX chip of serial device Hot-Swap and Control Unit and the schematic diagram of peripheral circuit thereof in the multi-network system data transmission device that provides of the embodiment of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The multi-network system data transmission device that the embodiment of the present invention provides is mainly used in the safety conduction of information under network system isolation environment.Fig. 1 shows the modular structure of this multi-network system data transmission device, and for convenience of explanation, illustrate only the part relevant to the embodiment of the present invention, details are as follows:
Multi-network system data transmission device comprise multiple physically-isolated first main frame Z1 mutually, the second main frame Z2 ... n-th main frame Zn, the serial device Hot-Swap and Control Unit 4 be all connected with multiple main frame, and the serial storage 5 be connected with serial device Hot-Swap and Control Unit 4, the built-in data Bridge Processing Unit of each main frame, each main frame is connected with a network system, and different main frames connects different network systems, during work, when a network system needs to another one or multiple network system conduct data, this network system then becomes original uncorrected data block by the Data Bridge processing unit of connected main frame after needing the data of conduction to carry out format and compression process, write serial storage 5 again, the low and high level exported by the GPIO of main frame is afterwards triggered serial device Hot-Swap and Control Unit 4 and controls serial storage 5 and disconnect on physical circuit with current hosts and be connected to another one main frame, the Data Bridge processing unit of another one main frame read from serial storage 5 data carry out reduction treatment after and be written in the network system be connected, after write work completes, then format string line storage 5 switchback are connected to main frame originally, if this subtask also needs the data this being written to serial storage 5 to conduct to other network system, format string line storage 5 and switchback is not needed to be connected to main frame originally, and the low and high level exported by the GPIO of main frame again triggers serial device Hot-Swap and Control Unit 4 controls serial storage 5 and disconnect on physical circuit with current hosts and be connected to another one main frame again and be connected and conduct data, the rest may be inferred, until complete after time needing all tasks of conduction, then format string line storage 5 switchback are connected to main frame originally.
In embodiments of the present invention, all be connected by serial data line between serial device Hot-Swap and Control Unit 4 with multiple main frame, between serial device Hot-Swap and Control Unit 4 with serial storage 5, be also connected by GPIO level signal line between multiple main frame with serial device Hot-Swap and Control Unit 4.Multi-network system data transmission device have employed the principle of serial device physical thermal plug: by serial device Hot-Swap and Control Unit control serial storage physical thermal plug and be switched to different, on mutual physically-isolated main frame; By Data Bridge processing unit toward the safe inputoutput data of serial storage; Serial storage load data different, automatically switch between mutual physically-isolated main frame, realize data safety conduction between multiple mutual physically-isolated main frame.
As one embodiment of the present of invention, serial device Hot-Swap and Control Unit 4 can be SATA equipment hot swap control module, USB device Hot-Swap and Control Unit or IEEE1394 equipment hot swap control module.
As one embodiment of the present of invention, serial storage 5 can be the CF card reader of the CD writer of serial line interface, the hard disk of serial line interface, the flash disk of serial line interface, the SD card reader of serial line interface or serial line interface.
In embodiments of the present invention, multiple main frame, serial device Hot-Swap and Control Unit 4, serial storage 5 can all be placed in a cabinet, namely in a cabinet, multiple unique host system is had, such as the first main frame Z1, the second main frame Z2 ... n-th main frame Zn, and complete physical isolation between each main frame.Connection between serial storage 5 and main frame is that the low and high level exported by the GPIO of main frame is triggered serial device Hot-Swap and Control Unit 4 and controls serial storage 5 and a main frame disconnects and is connected to another one main frame on physical circuit.When serial device Hot-Swap and Control Unit 4 is switched to a certain main frame, serial storage 5 automatic heating is loaded into this main frame, and thoroughly disconnects on physical circuit with the main frame be connected before.Meanwhile, each main frame is connected from different network systems by netting twine.Such as: the first main frame Z1 is connected with first network system W1, the second main frame Z2 second network system W2 is connected, the n-th main frame is connected with the n-th network system Wn.Each main frame is onboard data Bridge Processing Unit respectively, first main frame Z1 obtains the data needing conduction from first network system W1, onboard data Bridge Processing Unit becomes original uncorrected data block after needing the data of conduction to carry out format and compression process, then by original uncorrected data block write serial storage 5; After completing data write work, serial storage and current first main frame Z1 disconnect by serial device Hot-Swap and Control Unit 4 on physical circuit, and the serial storage that automatically switches is loaded into the second main frame Z2; Second main frame Z2 system onboard data Bridge Processing Unit reads the data in serial storage 5, and data are carried out reduction treatment, then data is write second network system W2; To complete after data write work format string line storage 5 again.Serial device Hot-Swap and Control Unit 4 disconnects serial storage and the second connection of main frame Z2 on physical circuit again, and is switched back by serial storage and be connected to the first main frame Z1.If also need the data continuing this to be written to serial storage 5 to conduct to the n-th network system Wn, do not need format string line storage 5 and switchback to be connected to the first main frame Z1, serial device Hot-Swap and Control Unit 4 again disconnects connection on physical circuit of serial storage 5 and the second main frame Z2 and is connected to the n-th main frame Zn; N-th main frame Zn onboard data Bridge Processing Unit reads the data in serial storage 5, and data are carried out reduction treatment, then data is write the n-th network system Wn; To complete after data write work format string line storage 5 again; Serial device Hot-Swap and Control Unit 4 again disconnects connection on physical circuit of serial storage 5 and the n-th main frame Zn and is switched back by serial storage 5 and is connected to the first main frame Z1, completes all tasks that this needs conduction.In the process of data conduction, the first main frame Z1, the second main frame Z2, the eternal physical isolation of the n-th main frame Zn and serial storage 5 are only connected with a certain main frame forever.Data conduction orientation is by hardware controls, and serial storage 5, after often completing a secondary data conduction task, can format also switchback and be connected to main frame originally.To ensure in conduct data process between credit environment and non-credit environment in non-credit network system virus and malicious code forever possibility do not enter credit environment.
The multiple-network system data that the embodiment of the present invention provides pass to device can realize data conduction in the physically-isolated situation of maintenance network system; Data conduction pattern is not programmable, and hardware exists programming device; Original Naked data and the serial storage of conduction do not have harmfulness, the data of conduction become original uncorrected data block, do not have the possibility of automatic execution instruction after going format and compression process, and serial storage is the operation that physics static device does not exist computer program and instruction.
In embodiments of the present invention, serial device Hot-Swap and Control Unit 4 comprises the MUX chip and peripheral circuit thereof of supporting serial device; Fig. 2 shows the physical circuit of MUX chip, 3:1SATAEquipment DeMux Chip that is 3 select 1 SATA equipment MUX chip, namely HOST SATAPORT connects the sata port of main frame, the sata port of STORAGE SATA PORT and connected storage; HOST1SATA PORT connects the first main frame Z1, and HOST2SATA PORT connects the second main frame Z2, and HOST3SATA PORT connects the 3rd main frame Z3, STORAGE SATA PORT and connects serial storage 5.Refer to Fig. 2 particularly, do not repeat them here.
In embodiments of the present invention, serial device Hot-Swap and Control Unit 4 can be SATA equipment hot swap control module, and it controls the physical thermal plug of serial storage 5 by the low and high level combination that the GPIO of main frame exports and automatically switches, and switch speed is fast; Serial storage 5 can be the CF card reader of the CD writer of SATA interface, the hard disk of SATA interface, the flash disk of SATA interface, the SD card reader of SATA interface or SATA interface.
In order to the multiple-network system data transmission method that the further description embodiment of the present invention provides, serial device Hot-Swap and Control Unit is for SATA equipment hot swap control module, serial storage is for the CD writer of SATA interface, and multiple-network system data transmission method specifically comprises:
Data Bridge processing unit in S1: the first main frame Z1 obtains the data needing conduction from the first network system W1 that it connects, then becomes original uncorrected data block after needing the data of conduction to carry out format and compression process;
S2: original uncorrected data block is written in the CD of the CD writer of SATA interface;
S3: the first main frame Z1 triggers the CD writer of SATA equipment hot swap control module control SATA interface by the low and high level that the GPIO of main frame exports and the first main frame Z1 disconnects and is connected to the second main frame Z2 on physical circuit;
Data Bridge processing unit in S4: the second main frame Z2 reads the original uncorrected data block in the CD of the CD writer of SATA interface and carries out reduction treatment, writes in the second network system W2 be connected with the second main frame Z2 afterwards again;
The CD of the CD writer of the Data Bridge processing unit format SATA interface in the S5: the second main frame Z2, the second main frame Z2 triggers the CD writer of SATA equipment hot swap control module control SATA interface and the second main frame Z2 by the low and high level that the GPIO of main frame exports and on physical circuit, disconnects also switchback be connected to the first main frame Z1 afterwards;
S6: if also need the original uncorrected data block in the CD of the CD writer this being written to SATA interface to conduct to other network system, do not need to perform step S5, and the CD writer that the low and high level exported by the GPIO of main frame again triggers SATA equipment hot swap control module control SATA interface disconnects with the second main frame Z2 and is connected the 3rd main frame Z3 on physical circuit;
Data Bridge processing unit in S7: the three main frame Z3 reads the original uncorrected data block in the CD of the CD writer of SATA interface and carries out reduction treatment, writes in the 3rd network system W3 be connected with the 3rd main frame Z3 afterwards again;
S8: the rest may be inferred, until the original uncorrected data block completed in the CD of the CD writer this being written to SATA interface formats the CD of the CD writer of SATA interface again after conducting to network system N predetermined in advance, the low and high level exported by the GPIO of main frame more afterwards triggers the CD writer of described SATA equipment hot swap control module control SATA interface and N main frame ZN disconnects on physical circuit and switchback is connected to the first main frame Z1.
In embodiments of the present invention, multi-network system data transmission device can realize data conduction in the physically-isolated situation of maintenance network system; The original Naked data of conduction, the CD writer of SATA interface and CD do not have harmfulness, the data of conduction become original uncorrected data block, do not have the possibility of automatic execution instruction after going format and compression process, and the CD writer of SATA interface and CD are the operation that physics static device does not exist computer program and instruction.In addition, the CD writer of SATA interface, after often conducting a secondary data, can format wherein CD and also switch back the main frame be connected to originally again; To ensure in conduct data process between credit environment and non-credit environment in non-credit network system virus and malicious code forever possibility do not enter credit environment, security is high.SATA equipment hot swap control module is that the low and high level combination exported by the GPIO of main frame is carried out the physical thermal plug of the CD writer of control SATA interface and automatically switches, and switch speed is fast.Also support mutual data security conduction between multiple network system environment simultaneously.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a multi-network system data transmission device, is characterized in that, the serial device Hot-Swap and Control Unit comprising multiple physically-isolated main frame, be all connected with multiple main frame, and the serial storage be connected with described serial device Hot-Swap and Control Unit; The built-in data Bridge Processing Unit of each main frame, each main frame is only connected with a network system, and different main frames connects different network systems;
During work, when a network system needs to another one or multiple network system conduct data, this network system then will need the data of conduction to carry out format and compression process by the Data Bridge processing unit of connected main frame and after writing described serial storage, the low and high level exported by the GPIO of main frame is triggered described serial device Hot-Swap and Control Unit and controls described serial storage and current hosts disconnects and is connected to another one main frame on physical circuit, the Data Bridge processing unit of another one main frame reads data and is written in the network system be connected from serial storage, described serial storage is then formatd and switchback is connected to main frame originally after write work completes, if this subtask also needs the data this being written to described serial storage to conduct to other network system, do not need to format described serial storage and switchback and be connected to main frame originally, and the low and high level exported by the GPIO of main frame again triggers described serial device Hot-Swap and Control Unit controls described serial storage and disconnect on physical circuit with current hosts and be connected to another one main frame again and be connected and conduct data, the rest may be inferred, until complete when after time all tasks of needs conduction, format described serial storage again and switchback is connected to main frame originally.
2. device as claimed in claim 1, is characterized in that, described serial device Hot-Swap and Control Unit with between multiple main frame, described serial device Hot-Swap and Control Unit is all connected by serial data line with between serial storage.
3. device as claimed in claim 1, it is characterized in that, described serial device Hot-Swap and Control Unit is connected by GPIO level signal line with between multiple main frame.
4. device as claimed in claim 1, it is characterized in that, described serial device Hot-Swap and Control Unit is: SATA equipment hot swap control module, USB device Hot-Swap and Control Unit or IEEE1394 equipment hot swap control module.
5. device as claimed in claim 1, is characterized in that, described serial device Hot-Swap and Control Unit comprises the MUX chip and peripheral circuit thereof of supporting serial device.
6. device as claimed in claim 1, it is characterized in that, described serial storage comprises: the CF card reader of the flash disk of the CD writer of serial line interface, the hard disk of serial line interface, serial line interface, the SD card reader of serial line interface or serial line interface.
7. device as claimed in claim 1, it is characterized in that, described multiple main frames, serial device Hot-Swap and Control Unit, serial storage are all placed in a cabinet.
8. the multiple-network system data transmission method adopting the device described in any one of claim 1-7 to realize, is characterized in that, comprise the steps:
Data Bridge processing unit in S1: the first main frame obtains the data needing conduction from the first network system that it connects, then becomes original uncorrected data block after needing the data of conduction to carry out format and compression process;
S2: described original uncorrected data block is written in described serial storage;
S3: the low and high level exported by the GPIO of main frame is triggered described serial device Hot-Swap and Control Unit and controls described serial storage and the first main frame disconnects and is connected to the second main frame on physical circuit;
Data Bridge processing unit in S4: the second main frame reads the original uncorrected data block in described serial storage and carries out reduction treatment, writes in the second network system be connected with the second main frame afterwards again;
Data Bridge processing unit in S5: the second main frame formats described serial storage, and the low and high level exported by the GPIO of main frame is afterwards triggered described serial device Hot-Swap and Control Unit and controls described serial storage and the second main frame and to disconnect on physical circuit and switchback is connected to the first main frame.
9. the multiple-network system data transmission method adopting the device described in any one of claim 1-7 to realize, is characterized in that, comprise the steps:
Data Bridge processing unit in S11: the first main frame obtains the data needing conduction from the first network system that it connects, then becomes original uncorrected data block after needing the data of conduction to carry out format and compression process;
S12: described original uncorrected data block is written in described serial storage;
S13: the low and high level exported by the GPIO of main frame is triggered described serial device Hot-Swap and Control Unit and controls described serial storage and the first main frame disconnects and is connected to the second main frame on physical circuit;
Data Bridge processing unit in S14: the second main frame reads the original uncorrected data block in described serial storage and carries out reduction treatment, writes in the second network system be connected with the second main frame afterwards again;
S15: if also need the original uncorrected data block this being written to described serial storage to conduct to other network system, then the low and high level exported by the GPIO of main frame is again triggered described serial device Hot-Swap and Control Unit and controls described serial storage and disconnect on physical circuit with the second main frame and be connected the 3rd main frame;
Data Bridge processing unit in S16: the three main frame reads the original uncorrected data block in described serial storage and carries out reduction treatment, writes in the 3rd network system be connected with the 3rd main frame afterwards again;
S17: the rest may be inferred, format described serial storage again until complete after the original uncorrected data block this being written to described serial storage conducts to network system N predetermined in advance, the low and high level exported by the GPIO of main frame is more afterwards triggered described serial device Hot-Swap and Control Unit and controls described serial storage and N main frame and to disconnect on physical circuit and switchback is connected to the first main frame.
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| CN104731741B (en) * | 2013-12-23 | 2019-03-19 | 研祥智能科技股份有限公司 | The method and system of hot plug |
| CN104219175B (en) * | 2014-08-20 | 2018-09-28 | 深圳太极云软技术股份有限公司 | Data exchange and service calling system and method |
| CN106971112B (en) * | 2017-03-09 | 2019-11-26 | 北京奇虎科技有限公司 | File read/write method and device |
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