CN202334547U - Dual-network access physical isolation online switch device based on USB bus - Google Patents
Dual-network access physical isolation online switch device based on USB bus Download PDFInfo
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- CN202334547U CN202334547U CN201120472865XU CN201120472865U CN202334547U CN 202334547 U CN202334547 U CN 202334547U CN 201120472865X U CN201120472865X U CN 201120472865XU CN 201120472865 U CN201120472865 U CN 201120472865U CN 202334547 U CN202334547 U CN 202334547U
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- intranet
- outer net
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Abstract
The utility model discloses a dual-network access physical isolation online switch device based on a USB bus, which comprises an inner network card interface, an outer network card interface, an inner network cable interface and an outer network cable interface, and also comprises a USB interface, a CPU unit connected with the USB interface, a first output port and a second output port, an inner network drive unit connected with the first output port, an outer network drive unit connected with the second output port, an inner network switch unit driven by the inner network drive unit, and an outer network switch unit driven by the outer network drive unit, wherein the first output port and the second output port are arranged on the CPU unit; the inner network switch unit is respectively connected with the inner network card interface and the inner network cable interface; and the outer network switch unit is respectively connected with the outer network card interface and the outer network cable interface. The dual-network access physical isolation online switch device has the beneficial effects of simple structure, convenience for operation due to instant completion of switching an inner network and an outer network, realization of physical isolation from the inner network after the outer network is switched, capability of ensuring that information of the inner network can not be leaked, and high safety.
Description
Technical field
The utility model relates to a kind of network switching device shifter, and particularly a kind of two nets based on usb bus insert the online switching device shifter of physical isolation.
Background technology
At present, along with the extensive use of network, a lot of units both had been provided with Intranet; Link to each other with outer net again, be in the needs of the information security of considering Intranet, the measure that these units take is a netting twine in when needs are gone up Intranet, inserting; When going up outer net on the needs, need break off Intranet, and then insert the mode of outer netting twine, though this measure can improve the fail safe of Intranet information; But manually operated mode is all adopted in the switching of Intranet and outer net, thereby wastes time and energy, and is very inconvenient.
Summary of the invention
The problem that the utility model will solve is: provide a kind of two nets based on usb bus simple in structure, easy switching to insert the online switching device shifter of physical isolation.
In order to solve the problems of the technologies described above; Two nets based on usb bus of the utility model insert the online switching device shifter of physical isolation; Comprise Intranet card, outer net card, Intranet line interface and outer net line interface; Also comprise USB interface, the CPU element that links to each other with USB interface, be arranged on first output port and second output port on the CPU element, the Intranet driver element that links to each other with first output port, the outer net driver element that links to each other with second output port, by the Intranet switch element of Intranet drive unit drives with by the outer net switch element of outer net drive unit drives; Said Intranet switch element links to each other with the Intranet line interface with the Intranet card respectively, and said outer net switch element links to each other with the outer net line interface with the outer net card respectively.
In order to control the switching of Intranet and outer net accurately and reliably; Two nets based on usb bus of the utility model insert the online switching device shifter of physical isolation, and said Intranet switch element comprises that one group of Intranet open type switch reaches the Intranet solid-state relay in order to control Intranet open type switch; Said outer net switch element comprises that one group of outer net open type switch reaches the outer net solid-state relay in order to control outer net open type switch; Said Intranet driver element comprises an Intranet triode, and the base stage of said Intranet triode links to each other with first output port, ground connection after collector electrode links to each other with the Intranet solid-state relay, grounded emitter; Said outer net driver element comprises an outer net triode, and the base stage of said outer net triode links to each other with second output port, ground connection after collector electrode links to each other with the outer net solid-state relay, grounded emitter.
The beneficial effect that the utility model is obtained is: (1) is simple in structure; (2) send the automatic switchover that Intranet and outer net are accomplished in instruction through computer, moment can accomplish automatically, and is easy to operate; (3) behind the switching outer net, realize the physical isolation of Intranet, can guarantee that the information of Intranet can not revealed, security performance is high.
Description of drawings
Fig. 1 is the utility model frame principles figure.
Fig. 2 is the electrical schematic diagram of the utility model.
Among the figure: 1, USB interface, 2, the Intranet card, 3, CPU element, 4, the outer net card, 5, the Intranet switch element,
6, Intranet driver element, 7, the outer net driver element, 8, the outer net switch element, 9, the Intranet line interface,
10, outer net line interface, 11, Intranet open type switch, 12, the Intranet solid-state relay, 13, the Intranet triode,
14, outer net open type switch, 15, the outer net solid-state relay, 16, the outer net triode, 17, second output port,
18, first output port.
Embodiment
As depicted in figs. 1 and 2; Two nets based on usb bus of the utility model insert the online switching device shifter of physical isolation; Comprise Intranet card 2, outer net card 4, Intranet line interface 9 and outer net line interface 10; The CPU element 3 that also comprise usb 1, links to each other with usb 1, be arranged on first output port 18 and second output port 17 on the CPU element 3, the Intranet driver element 6 that links to each other with first output port 18, the outer net driver element 7 that links to each other with second output port 17, the Intranet switch element 5 that drives by Intranet driver element 6 and the outer net switch element 8 that drives by outer net driver element 7; Said Intranet switch element 5 links to each other with Intranet line interface 9 with Intranet card 2 respectively, and said outer net switch element 8 links to each other with outer net line interface 10 with outer net card 4 respectively; Said Intranet switch element 5 comprises that one group of Intranet open type switch 11 reaches the Intranet solid-state relay 12 in order to control Intranet open type switch 11; Said outer net switch element 8 comprises that one group of outer net open type switch 14 reaches the outer net solid-state relay 15 in order to control outer net open type switch 14; Said Intranet driver element 6 comprises an Intranet triode 13, and the base stage of said Intranet triode 13 links to each other with first output port 18, ground connection after collector electrode links to each other with Intranet solid-state relay 12, grounded emitter; Said outer net driver element 7 comprises an outer net triode 16, and the base stage of said outer net triode 16 links to each other with second output port 17, ground connection after collector electrode links to each other with outer net solid-state relay 15, grounded emitter.
In the time of concrete the use, the two nets based on usb bus of the utility model insert the online switching device shifter of physical isolation, according to job requirement, three kinds of operating states are arranged:
One, Network Isolation state.
After computer sends the Network Isolation status command; Control signal is sent to CPU element 3 through usb 1; After CPU element 3 identifications are handled, second output port 17 and first output port, 18 equal output low levels, at this moment; Intranet triode 13 all breaks off with outer net triode 16; Intranet solid-state relay 12 all is failure to actuate with outer net solid-state relay 15, and Intranet open type switch 11 all is in off-state with outer net open type switch 14, thereby realizes computer Intranet and all disjunct Network Isolation state of outer net.
Two, Intranet operating state.
After computer sends the instruction of connection Intranet; Control signal is sent to CPU element 3 through the computer usb 1, after CPU element 3 identifications are handled, and first output port, 18 output high level; 13 conductings of Intranet triode; Intranet triode 13 and then drive 12 adhesives of Intranet solid-state relay, Intranet open type switch 11 closures, thus realized being communicated with of Intranet card 2 and Intranet line interface 9; Simultaneously, second output port, 17 output low levels, outer net triode 16 still breaks off, the 15 not adhesives of outer net solid-state relay, outer net open type switch 14 still breaks off, and outer net is in isolation.
Three, connect outer net state.
After computer sends the instruction of connection Intranet; Control signal is sent to CPU element 3 through the computer usb 1, after CPU element 3 identifications are handled, and second output port, 17 output high level; 16 conductings of outer net triode; Outer net triode 16 and then drive 15 adhesives of outer net solid-state relay, outer net open type switch 14 closures, thus realized being communicated with of outer net card 4 and outer net line interface 10; Simultaneously, first output port, 18 output low levels, Intranet triode 13 is in off-state, the 12 not adhesives of Intranet solid-state relay, Intranet open type switch 11 breaks off, and Intranet is in isolation.
Two nets based on usb bus of the utility model insert the online switching device shifter of physical isolation, and simple in structure, moment can be accomplished the switching of Intranet and outer net automatically, and is easy to operate.
Two nets based on usb bus of the utility model insert the online switching device shifter of physical isolation, behind the switching outer net, realize the physical isolation of Intranet, can guarantee that the information of Intranet can not revealed, and security performance is high.
Claims (2)
1. the two nets based on usb bus insert the online switching device shifter of physical isolation; Comprise Intranet card (2), outer net card (4), Intranet line interface (9) and outer net line interface (10); It is characterized in that: also comprise USB interface (1), the CPU element (3) that links to each other with USB interface (1), be arranged on first output port (18) and second output port (17) on the CPU element (3), the Intranet driver element (6) that links to each other with first output port (18), the outer net driver element (7) that links to each other with second output port (17), the Intranet switch element (5) that drives by Intranet driver element (6) and the outer net switch element (8) that drives by outer net driver element (7); Said Intranet switch element (5) links to each other with Intranet line interface (9) with Intranet card (2) respectively, and said outer net switch element (8) links to each other with outer net line interface (10) with outer net card (4) respectively.
2. the two nets based on usb bus according to claim 1 insert the online switching device shifter of physical isolation, and it is characterized in that: said Intranet switch element (5) comprises that one group of Intranet open type switch (11) reaches the Intranet solid-state relay (12) in order to control Intranet open type switch (11); Said outer net switch element (8) comprises that one group of outer net open type switch (14) reaches the outer net solid-state relay (15) in order to control outer net open type switch (14); Said Intranet driver element (6) comprises an Intranet triode (13), and the base stage of said Intranet triode (13) links to each other with first output port (18), ground connection after collector electrode links to each other with Intranet solid-state relay (12), grounded emitter; Said outer net driver element (7) comprises an outer net triode (16), and the base stage of said outer net triode (16) links to each other with second output port (17), ground connection after collector electrode links to each other with outer net solid-state relay (15), grounded emitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120472865XU CN202334547U (en) | 2011-11-14 | 2011-11-14 | Dual-network access physical isolation online switch device based on USB bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120472865XU CN202334547U (en) | 2011-11-14 | 2011-11-14 | Dual-network access physical isolation online switch device based on USB bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202334547U true CN202334547U (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120472865XU Expired - Fee Related CN202334547U (en) | 2011-11-14 | 2011-11-14 | Dual-network access physical isolation online switch device based on USB bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202334547U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102963401A (en) * | 2012-10-29 | 2013-03-13 | 泉州市铁通电子设备有限公司 | Novel comprehensive equipment of railway station system |
| CN104301132A (en) * | 2013-01-30 | 2015-01-21 | 洛克威尔自动控制技术股份有限公司 | Network configurable industrial device |
-
2011
- 2011-11-14 CN CN201120472865XU patent/CN202334547U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102963401A (en) * | 2012-10-29 | 2013-03-13 | 泉州市铁通电子设备有限公司 | Novel comprehensive equipment of railway station system |
| CN104301132A (en) * | 2013-01-30 | 2015-01-21 | 洛克威尔自动控制技术股份有限公司 | Network configurable industrial device |
| CN104301132B (en) * | 2013-01-30 | 2017-11-14 | 洛克威尔自动控制技术股份有限公司 | Internet exchange system and the method for internet exchange system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120711 Termination date: 20121114 |