CN204719759U - A kind of computer network virus shielding system - Google Patents
A kind of computer network virus shielding system Download PDFInfo
- Publication number
- CN204719759U CN204719759U CN201520489489.3U CN201520489489U CN204719759U CN 204719759 U CN204719759 U CN 204719759U CN 201520489489 U CN201520489489 U CN 201520489489U CN 204719759 U CN204719759 U CN 204719759U
- Authority
- CN
- China
- Prior art keywords
- intranet
- outer net
- interface card
- connects
- network interface
- 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.)
- Expired - Fee Related
Links
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
- Computer And Data Communications (AREA)
- Small-Scale Networks (AREA)
Abstract
The utility model provides a kind of computer network virus shielding system, comprise main frame, Intranet network interface card, Intranet, outer net network interface card, outer net, disconnector and intranet and extranet data exchange unit, main frame connects Intranet network interface card respectively, outer net network interface card, Intranet network interface card connects Intranet, outer net network interface card connects outer net, main frame connects disconnector by pci interface, disconnector is bi-directionally connected Intranet and outer net respectively, intranet and extranet data exchange unit output terminal and Intranet, outer net is connected, to realize data double-way transmission, intranet and extranet data exchange unit mainly comprises intranet server and external network server, intranet server comprises the first image acquisition units, first display unit, external network server comprises the second image acquisition units, second display unit, the utility model structure is simple, one-way data exchange is carried out under the disconnector cost low energy adopted realizes network security isolation condition, effectively can take precautions against the intrusion of inside and outside internet worm.
Description
Technical field
The utility model relates to computer network field, particularly relates to a kind of computer network virus shielding system.
Background technology
For any computer network, ensuring information safety is all the key issue that first will solve.Particularly the Intranet of some unit, enterprise, in-house foundation and private, must cannot invade by strict guarantee internal network, internal data do not leak simultaneously not by the virus on internet, wooden horse infect.Along with the development of computer and network technologies, network security and information security have become a problem day by day received publicity, especially access the company Intranet of Internet, and its data security is of crucial importance, once Virus entry generation information leakage, can suffer heavy losses to the interests of our unit.Current network safety prevention mainly contains two kinds of methods, one adopts two hard disk mode in computing machine, single hard disk work pattern is adopted in risk environment, another kind arranges network firewall between inner network and external network, disconnect the connection of Intranet and outer net from hardware view when running into network risks, two kinds of modes cut both ways.
Summary of the invention
In order to solve the problem, it is simple that the utility model provides a kind of structure, and cost low energy carries out one-way data exchange under realizing network security isolation condition, effectively can take precautions against the technical scheme of the intrusion of inside and outside internet worm:
A kind of computer network virus shielding system, mainly comprise main frame, Intranet network interface card, Intranet, outer net network interface card, outer net, disconnector and intranet and extranet data exchange unit, main frame connects Intranet network interface card respectively, outer net network interface card, Intranet network interface card connects described Intranet, outer net network interface card connects outer net, main frame connects disconnector by pci interface, disconnector is bi-directionally connected Intranet and outer net respectively, intranet and extranet data exchange unit output terminal and Intranet, outer net is connected, intranet and extranet data exchange unit mainly comprises intranet server and external network server, intranet server comprises the first image acquisition units, first display unit, external network server comprises the second image acquisition units, second display unit.
As preferably, intranet server is bi-directionally connected external network server, and the first image acquisition units connects the second display unit, and the second image acquisition units connects the first display unit.
As preferably, disconnector comprises Programmable Logic Device, single-chip microcomputer, RS232 port, memory module, RS485 port, control module and power module, single-chip microcomputer connects Programmable Logic Device, RS485 port respectively, Programmable Logic Device connects RS232 port, memory module respectively, RS232 port connects memory module, memory module connects RS485 module, and control module connects RS232 port, memory module respectively, power module link control module.
As preferably, intranet server and external network server all there are outgoing telecommunication proxy module and service agent module.
The beneficial effects of the utility model are:
(1) the utility model adopt disconnector, cost low energy carries out one-way data exchange under realizing network security isolation condition, network layer has blocked external network internally network virus attack and complete valid data transmission.
(2) the intranet and extranet data exchange unit of the utility model employing, by converting data to the mode of video data, effectively can ensure the data security of dedicated network, effectively can take precautions against the intrusion of inside and outside internet worm.Realize interconnecting of intranet and extranet.
Accompanying drawing explanation
Fig. 1 is johning knot composition of the present utility model.
Fig. 2 is intranet and extranet data exchange unit schematic diagram of the present utility model.
Fig. 3 is disconnector schematic diagram of the present utility model.
Embodiment
For making goal of the invention of the present utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
As shown in Figure 1-2, a kind of computer network virus shielding system, mainly comprise main frame 1, Intranet network interface card 2, Intranet 3, outer net network interface card 4, outer net 5, disconnector 6 and intranet and extranet data exchange unit 7, main frame 1 connects Intranet network interface card 2 respectively, outer net network interface card 4, Intranet network interface card 2 connects Intranet 3, outer net network interface card 4 connects outer net 5, main frame 1 connects disconnector 6 by pci interface 11, disconnector 6 is bi-directionally connected Intranet 3 and described outer net 5 respectively, intranet and extranet data exchange unit 7 output terminal and Intranet 3, outer net 5 is connected, intranet and extranet data exchange unit 7 mainly comprises intranet server 71 and external network server 72, intranet server 71 comprises the first image acquisition units 711, first display unit 712, external network server 72 comprises the second image acquisition units 721, second display unit 722.Intranet server 71 is bi-directionally connected external network server 72, first image acquisition units 711 connects the second display unit 722, second image acquisition units 721 connects the first display unit 712, and intranet server 71 and external network server 72 all have outgoing telecommunication proxy module and service agent module.First the data that outer net 5 transmits to Intranet 3 are temporarily stored in intranet and extranet data exchange unit 7, and intranet and extranet data exchange unit 7 can check network data, filter the bad datas such as virus wherein, send data to Intranet 3 afterwards; Data the keeping in and filtering also through intranet and extranet data exchange unit 7 that Intranet 3 is transmitted to outer net 5, checks whether the risk existing and reveal internal information, transfers to outer net 5 afterwards.The intranet and extranet data exchange unit that the utility model adopts, by converting data to the mode of video data, effectively can ensure the data security of dedicated network, effectively can take precautions against the intrusion of inside and outside internet worm.Realize interconnecting of intranet and extranet.
As shown in Figure 3, disconnector 6 comprises Programmable Logic Device 61, single-chip microcomputer 62, RS232 port 63, memory module 64, RS485 port 65, control module 66 and power module 67, single-chip microcomputer 62 connects Programmable Logic Device 61, RS485 port 65 respectively, Programmable Logic Device 61 connects RS232 port 63, memory module 64 respectively, RS232 port 63 connects memory module 64, memory module 64 connects RS485 module 65, control module 66 connects RS232 port 63, memory module 64 respectively, power module 67 link control module 66.Intranet 3 data enter transmission control unit (TCU) via Serial Port Line, by the process of Programmable Logic Device 61, first buffer memory in memory module 64 is transferred to by the data in RS232 port 63, then RS485 module 65 is forwarded to, arrive outer net 5 via serial communication line, protocol converter and ethernet line, complete the whole process of data transmission.The utility model adopt disconnector, cost low energy carries out one-way data exchange under realizing network security isolation condition, network layer has blocked external network internally network virus attack and complete valid data transmission.
Above-described embodiment is preferred embodiment of the present utility model; it is not the restriction to technical solutions of the utility model; as long as without the technical scheme that creative work can realize on the basis of above-described embodiment, all should be considered as falling within the scope of the rights protection of the utility model patent.
Claims (4)
1. a computer network virus shielding system, it is characterized in that: comprise main frame (1), Intranet network interface card (2), Intranet (3), outer net network interface card (4), outer net (5), disconnector (6) and intranet and extranet data exchange unit (7), described main frame (1) connects described Intranet network interface card (2) respectively, described outer net network interface card (4), described Intranet network interface card (2) connects described Intranet (3), described outer net network interface card (4) connects described outer net (5), described main frame (1) connects described disconnector (6) by pci interface (11), described disconnector (6) is bi-directionally connected described Intranet (3) and described outer net (5) respectively, described intranet and extranet data exchange unit (7) output terminal and described Intranet (3), described outer net (5) is connected, described intranet and extranet data exchange unit (7) mainly comprises intranet server (71) and external network server (72), described intranet server (71) comprises the first image acquisition units (711), first display unit (712), described external network server (72) comprises the second image acquisition units (721), second display unit (722).
2. a kind of computer network virus shielding system according to claim 1, it is characterized in that: described intranet server (71) is bi-directionally connected described external network server (72), described first image acquisition units (711) connects described second display unit (722), and described second image acquisition units (721) connects described first display unit (712).
3. a kind of computer network virus shielding system according to claim 1, it is characterized in that: described disconnector (6) comprises Programmable Logic Device (61), single-chip microcomputer (62), RS232 port (63), memory module (64), RS485 port (65), control module (66) and power module (67), described single-chip microcomputer (62) connects described Programmable Logic Device (61) respectively, RS485 port (65), described Programmable Logic Device (61) connects described RS232 port (63) respectively, described memory module (64), described RS232 port (63) connects described memory module (64), described memory module (64) connects described RS485 module (65), described control module (66) connects described RS232 port (63) respectively, described memory module (64), described power module (67) connects described control module (66).
4. a kind of computer network virus shielding system according to claim 1, is characterized in that: described intranet server (71) and described external network server (72) all have outgoing telecommunication proxy module and service agent module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520489489.3U CN204719759U (en) | 2015-07-09 | 2015-07-09 | A kind of computer network virus shielding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520489489.3U CN204719759U (en) | 2015-07-09 | 2015-07-09 | A kind of computer network virus shielding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204719759U true CN204719759U (en) | 2015-10-21 |
Family
ID=54318735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520489489.3U Expired - Fee Related CN204719759U (en) | 2015-07-09 | 2015-07-09 | A kind of computer network virus shielding system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204719759U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108769076A (en) * | 2018-07-06 | 2018-11-06 | 北京绪水互联科技有限公司 | Data collecting system, method and device with network isolation function |
| CN113406936A (en) * | 2021-06-28 | 2021-09-17 | 中国科学技术大学 | Control system of large scientific device |
| CN114500068A (en) * | 2022-02-10 | 2022-05-13 | 广州云羲网络科技有限公司 | Information data exchange system based on safety isolation network gate |
| CN115622799A (en) * | 2022-11-29 | 2023-01-17 | 南京科讯次元信息科技有限公司 | Safety architecture system based on network isolation system |
-
2015
- 2015-07-09 CN CN201520489489.3U patent/CN204719759U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108769076A (en) * | 2018-07-06 | 2018-11-06 | 北京绪水互联科技有限公司 | Data collecting system, method and device with network isolation function |
| CN108769076B (en) * | 2018-07-06 | 2023-12-05 | 北京绪水互联科技有限公司 | Data acquisition system, method and device with network isolation function |
| CN113406936A (en) * | 2021-06-28 | 2021-09-17 | 中国科学技术大学 | Control system of large scientific device |
| CN114500068A (en) * | 2022-02-10 | 2022-05-13 | 广州云羲网络科技有限公司 | Information data exchange system based on safety isolation network gate |
| CN114500068B (en) * | 2022-02-10 | 2024-01-09 | 广州云羲网络科技有限公司 | Information data exchange system based on safety isolation gatekeeper |
| CN115622799A (en) * | 2022-11-29 | 2023-01-17 | 南京科讯次元信息科技有限公司 | Safety architecture system based on network isolation system |
| CN115622799B (en) * | 2022-11-29 | 2023-03-14 | 南京科讯次元信息科技有限公司 | Safety architecture system based on network isolation system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204719759U (en) | A kind of computer network virus shielding system | |
| CN103200201B (en) | The shielding system of a kind of public security Intranet and video private network and partition method | |
| CN104486336A (en) | Device for safely isolating and exchanging industrial control networks | |
| CN101986638A (en) | Gigabit one-way network isolation device | |
| CN105656883A (en) | Unidirectional transmission internal and external network secure isolating gateway applicable to industrial control network | |
| CN105656902A (en) | One-way reliable transmission and control system based on light transmission | |
| CN103139058A (en) | Internet of things security access gateway | |
| CN104683352A (en) | Industrial communication isolation gap with double-channel ferrying function | |
| CN202077060U (en) | Network isolation data exchanger | |
| CN104270393A (en) | Network isolation system | |
| CN201936307U (en) | Special physical isolation device for electric power system | |
| CN202798788U (en) | Two-tiered networking device based on network isolation | |
| CN201878191U (en) | Security access device for video | |
| CN102195984A (en) | Secure transmission device | |
| CN203219330U (en) | Isolation system for public security internal network and video private network | |
| CN216819851U (en) | Safety access device in transformer substation | |
| CN202231742U (en) | Network isolation device | |
| CN203301525U (en) | Network security isolator based on information bridge | |
| CN206195823U (en) | Network video monitoring takes photograph isolation devices between camera node and server | |
| CN205142271U (en) | Adoption has network security protector of switch of preventing hot wall function | |
| CN109120619A (en) | A kind of computer network communications system | |
| CN205068408U (en) | Computer network isolated system | |
| CN205142221U (en) | One -way fiber transmission system is kept apart to network | |
| CN106953778A (en) | A kind of long-distance management system | |
| CN205142275U (en) | Adopt transportation industry network protection device of distributed switching machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20160709 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |