CN201114132Y - Computer network isolated system - Google Patents
Computer network isolated system Download PDFInfo
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- CN201114132Y CN201114132Y CNU2007200539188U CN200720053918U CN201114132Y CN 201114132 Y CN201114132 Y CN 201114132Y CN U2007200539188 U CNU2007200539188 U CN U2007200539188U CN 200720053918 U CN200720053918 U CN 200720053918U CN 201114132 Y CN201114132 Y CN 201114132Y
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Abstract
The utility model discloses a computer network isolation system, comprising a computer mainframe, a network isolation device connected with the computer mainframe, and a network select switch, wherein, network interfaces of the network isolation device are respectively connected with an inner network and an outer network; the network select switch communicates with the network isolation device through wired or wireless mode, the network select switch is provided with an inner network switching key and an outer network switching key, the inner network switching key and the outer network switching key perform network switching and start the computer at the same time. The computer network isolation system is characterized in that: the computer network isolation system integrates the network switching and computer starting in one press-key, realizing the 'one key' type network switching; and the system also can realize the sleep switching mode thereby being convenient to use and effectively improving the speed of network switching.
Description
Technical field
The utility model relates to the Network Isolation technology in information security of computer network field, particularly a kind of network isolation system that is applied to computer network.
Background technology
Along with extensively popularizing of fast development of computer technology and the Internet, network security and information security have become a problem that receives publicity day by day, particularly in enterprises and institutions such as government bodies, banks, its inside relates to secret or secret data message is not wish arbitrarily to be obtained by the user of external network, in case the leakage of significant data takes place, will make the interests of our unit or company suffer heavy losses, even threaten nation's security and interests etc.For addressing the above problem, the Network Isolation technology has just appearred, and existing Network Isolation mode has various ways, and wherein the physical isolation mode is wherein a kind of important developing direction.For example, disclosed Chinese invention patent application CN 1688129A disclosed a kind of network isolating device and method thereof based on pci bus on October 26th, 2005, isolated also mutually between inner network and external network and can conveniently switch by the network security separate card realization computer that is plugged in the computer.
As mentioned above, physical isolation card is to use more a kind of device in the present Network Isolation mode, and existing network security separate card has following several mode to realize control and switching between Intranet and outer net usually:
(a) control mode of starting shooting after the first network selection: external wired physical switch, before the start at first toggle switch place Intranet or outer net, open computer then, enter selected Intranet of respective switch or outer net behind the computer starting automatically;
(b) network selection control mode after the start earlier: after starting computer, computer at first ejects a network selecting interface, and after the user selected to enter Intranet or outer net, system just entered corresponding network state;
(c) outage between Intranet and the outer net is switched: at first shut down computer, carry out after the first network selection start control mode or start back network selection control mode earlier then, computer starts once more and switches to corresponding network state;
(d) the charged switching between Intranet and the outer net: promptly by the function of restarting of computer, when the needs handover network, control computer shutdown system is switched Intranet or outer net then in the computer restarting process.
In the above variety of way,, its network switching (selecting Intranet or outer net) and computer starting carry out because being divided into two steps.The user needs to select Intranet or outer net by switch earlier, and then starts computer; After perhaps starting computer earlier, select Intranet or outer net again, it is longer therefore to cause network to switch required time, and the user is used inconvenience.
Summary of the invention
The purpose of this utility model is to provide a kind of computer network isolated system and control changing method thereof of can start shooting fast network selection and switching thereof, by this system and method, the user can " one-touch " realize the start network selection and switching fast between Intranet and outer net.
The technical scheme that the utility model adopted: a kind of computer network isolated system, comprise main frame, and the network isolating device that is connected with main frame, the network interface of described network isolating device is connected with outer net with Intranet respectively, also comprise the network selecting switch, this network selecting switch carries out communication by wired or wireless mode and network isolating device, described network selecting switch is provided with Intranet switch key and outer net switch key, and described Intranet switch key and outer net switch key are carrying out starting computer when network switches.
Above-mentioned network selecting switch is arranged on the main frame, but both separate configurations of its Intranet switch key and outer net switch key also can be embedded on the start panel of main frame.
Also be provided with a closing key on the above-mentioned network selecting switch, be used to the main frame of shutting down computer.
Above-mentioned network selecting switch is connected with network isolating device by control line.
Above-mentioned network selecting switch is provided with wireless transmitter module, and carries out communication by wireless mode and network isolating device.Described network selecting switch can carry out communication by infrared mode or bluetooth approach and network isolating device.
Above-mentioned network isolating device is pegged graft by the mainboard of pci bus and main frame.
The control and the changing method of computer network isolated system described in the utility model are realized by following steps: (a) select the required network that enters by the network selecting switch; (b) after network isolating device detects the triggering signal of network selecting switch, judge and carry out following steps: (c1), then start computer and enter corresponding network if current computer is in off-mode; (c2) if current computer is in running status, can preserve the operating state of current computer system operation, make current system enter resting state, restart computer then and switch to the selected new network of network selecting switch.
The operating state of the current computer system operation of being preserved in the above-mentioned steps (c2) is called execution automatically when network switching next time.
Above-mentioned network selecting switch is provided with Intranet switch key and outer net switch key, and its Intranet switch key and outer net switch key are carrying out starting computer when network switches.
Distinguishing feature of the present utility model is that it switches network and computer starting combines on the same button, the user only need select one-touch can select or handover network, and startup computer, realize " one-touch " network control switching, solved the legacy network isolation card and need totally two go on foot operator schemes through network selecting and computer starting, therefore user-friendly.In addition, the pattern that the present invention adopts dormancy to switch, promptly when computer was in running status, as the need handover network, then computer can be preserved the operating state of current system operation automatically, make current system enter resting state, (annotate: it is main power sources such as shutoff+5V ,+12V ,+3V that computer system is in resting state, only supply standby power), restart computer then and switch to another network state; When computer switched to former network state once more, system's working procedure of above-mentioned preservation was called execution automatically, effectively raises the network switch speed, and is not only convenient but also quick.
Description of drawings
Fig. 1 is a theory diagram of the present utility model;
Fig. 2 is the structural representation of network isolating device described in the utility model;
Fig. 3 (a), 3 (b) are the theory diagram of the utility model specific embodiment;
Fig. 4 is the physical circuit figure of network isolating device described in the utility model.
Embodiment
As shown in Figure 1, computer network isolated system described in the utility model comprises main frame 10, network isolating device 20 and network selecting switch 30.Network isolating device 20 is pegged graft by the mainboard of pci bus and main frame 10, and the network interface of described network isolating device 20 is connected with outer net with Intranet respectively.Network selecting switch 30 carries out communication by wired or wireless mode and network isolating device 20, and described network selecting switch 30 is provided with Intranet switch key 31 and outer net switch key 32.
As shown in Figure 2, above-mentioned network isolating device 20 comprises pci bus interface 1, singlechip controller 2, network switch unit 3, hard disk switch unit 4 and filter 5.The output of singlechip controller 2 connects network switch unit 3 and hard disk switch unit 4 respectively, and the input of filter 5 is connected with pci bus interface 1, and output is connected with singlechip controller 2.Be illustrated in figure 4 as the physical circuit figure of network isolating device, wherein the line traffic control interface of network isolating device is connected with the network selecting switch SW, and wireless receiving module is used to receive the signal of wireless network selector switch.Contact pin PWON is connected with mains switch; Interface NA, NB, NC are port, connect Intranet, computer network interface and outer net respectively; Interface PA, PB, PC are power port, network source, outer network source and computer power supply in connecting respectively.The detailed structure of network isolating device 20 and circuit theory diagrams can be not repeated at this with reference to disclosed Chinese invention patent application CN 1688129A on October 26th, 2005.
Below introduce the composition and the operation principle of computer network isolated system described in the utility model in detail by specific embodiment.
Shown in Fig. 3 (a), 3 (b), network isolating device is provided with two kinds of interface modes that are connected with the network selecting switch, and first line traffic control interface is used to connect the network selecting switch of wired mode; The another kind of wireless receiving module that adopts receives the signal by the network selecting switch transmission of wireless mode.Above-mentioned two kinds of interfaces are connected with the control unit (singlechip controller) of network isolating device by behind the superpositing unit.The output of control unit is connected with power port (being used to control the power supply switching of hard disk), port (being used to control Intranet/outer net switches) and hard disk mouth (being used to control the hard disc data interface switches) respectively.Network isolating device is connected with main frame by the PCI slot, and control unit is by pci bus and computer communication.In order to realize that " one-touch " network switches, the utility model carries out reconfiguration to the power initiation line (POWER ON) of active computer main frame, the startup line reconfiguration of the start key on the former main frame panel to network isolating device, is joined one more in addition and started line and be connected on power supply (POWER ON) binding post of computer motherboard.For original-pack computer, because can not reconfiguration power initiation line (POWER ON), the power management line PME# (A19) of pci bus can be adopted.The control unit of network isolating device starts computer by the power management line PME of electric source line interface or pci bus.In addition, also be provided with the computer power supply detecting unit on the network isolating device.
Embodiment one:
Embodiment two:
In addition, on wireless network selecting switch 30, also be provided with a closing key (not indicating among the figure), when the computer booting state, press closing key and will shut down computer; If when the computer closed condition, press closing key, computer will start and enter automatically before the network state that computer-chronograph moved of once shutting down.
The network selecting switch of the foregoing description one described wired mode and embodiment two described wireless modes can be compatible, both can use simultaneously, also can distinguish independent use.
Embodiment three:
For the operation that further makes things convenient for network to switch, the utility model can be arranged at network selecting switch 30 on the main frame 10, and its Intranet switch key 31 and outer net switch key 32 are embedded on the start panel of main frame 10.Different with traditional main frame is to have two start keys that have the network handoff functionality concurrently---Intranet switch key 31 and outer net switch key 32 on this main frame.When pressing Intranet switch key 31, main frame 10 startups also enter the Intranet pattern; When pressing outer net switch key 32, main frame 10 startups also enter the outer net pattern.If carrying out network when computer is in running status switches, the operating state that main frame can at first move current system is saved to hard disk, make current system enter resting state, restart computer then and switch to the selected network schemer of network selecting switch.When computer switched to former network state once more, system's working procedure of above-mentioned preservation was called execution automatically.
In addition, the utility model also can be realized above-mentioned network handover operation by this shortcut by the shortcut (for example F9) on the setting computer keyboard as the network diverter switch.
Based on aforementioned calculation machine network isolation system, comprise main frame, and the network isolating device that is connected with main frame, described network isolating device is connected with the network selecting switch, and the control and the changing method of network isolation system described in the utility model are realized by following steps:
(a) select the required network that enters by the network selecting switch;
(b) after network isolating device detects the triggering signal of network selecting switch, judge and carry out following steps:
(c1) if current computer is in off-mode, then starts computer and enter corresponding network;
(c2) if current computer is in running status, can preserve the operating state of current computer system operation, make current system enter resting state, restart computer then and switch to the selected network schemer of network selecting switch.
The operating state of the current computer system operation of being preserved in the above-mentioned steps (c2) is called execution automatically when network switching next time.
The common trait of above-mentioned three embodiment and its implementation is, the Intranet switch key 31 of its described network selecting switch 30 and outer net switch key 32 have network handoff functionality and computer starting function simultaneously, the user only needs can finish by a switch key when carrying out the network switching or starting computer.And traditional Network Isolation is stuck in when carrying out the network switching, needs at least through two steps---start computer and select network schemer.Therefore, the utility model effectively raises the network switch speed, and is not only convenient but also quick.
Claims (7)
1. computer network isolated system, comprise main frame, and the network isolating device that is connected with main frame, the network interface of described network isolating device is connected with outer net with Intranet respectively, it is characterized in that, also comprise the network selecting switch, this network selecting switch carries out communication by wired or wireless mode and network isolating device, described network selecting switch is provided with Intranet switch key and outer net switch key, and described Intranet switch key and outer net switch key are carrying out starting computer when network switches.
2. according to the described computer network isolated system of claim 1, it is characterized in that described network selecting switch is arranged on the main frame, its Intranet switch key and outer net switch key can be embedded on the start panel of main frame.
3. according to claim 1 or 2 described computer network isolated systems, it is characterized in that, also be provided with a closing key on the described network selecting switch, be used to the main frame of shutting down computer.
4. according to the described computer network isolated system of claim 1, it is characterized in that described network selecting switch is connected with network isolating device by control line.
5. according to the described computer network isolated system of claim 1, it is characterized in that described network selecting switch is provided with wireless transmitter module, and carry out communication by wireless mode and network isolating device.
6. according to the described computer network isolated system of claim 5, it is characterized in that described network selecting switch carries out communication by infrared mode or bluetooth approach and network isolating device.
7. according to the described computer network isolated system of claim 1, it is characterized in that described network isolating device is pegged graft by the mainboard of pci bus and main frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200539188U CN201114132Y (en) | 2007-07-10 | 2007-07-10 | Computer network isolated system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200539188U CN201114132Y (en) | 2007-07-10 | 2007-07-10 | Computer network isolated system |
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| CN201114132Y true CN201114132Y (en) | 2008-09-10 |
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| CNU2007200539188U Expired - Fee Related CN201114132Y (en) | 2007-07-10 | 2007-07-10 | Computer network isolated system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106484651A (en) * | 2016-10-21 | 2017-03-08 | 国网黑龙江省电力有限公司信息通信公司 | Usb switching device and method |
| CN108696395A (en) * | 2018-05-23 | 2018-10-23 | 湖南麒麟信安科技有限公司 | Network switching device and its application process under a kind of Multi net voting isolation environment |
-
2007
- 2007-07-10 CN CNU2007200539188U patent/CN201114132Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106484651A (en) * | 2016-10-21 | 2017-03-08 | 国网黑龙江省电力有限公司信息通信公司 | Usb switching device and method |
| CN108696395A (en) * | 2018-05-23 | 2018-10-23 | 湖南麒麟信安科技有限公司 | Network switching device and its application process under a kind of Multi net voting isolation environment |
| CN108696395B (en) * | 2018-05-23 | 2021-06-25 | 湖南麒麟信安科技股份有限公司 | Network switching device under multi-network isolation environment and application method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080910 Termination date: 20100710 |