CN204408385U - Hydroelectric station serial ports type network security shielding system - Google Patents
Hydroelectric station serial ports type network security shielding system Download PDFInfo
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- CN204408385U CN204408385U CN201520101452.9U CN201520101452U CN204408385U CN 204408385 U CN204408385 U CN 204408385U CN 201520101452 U CN201520101452 U CN 201520101452U CN 204408385 U CN204408385 U CN 204408385U
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- serial ports
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Abstract
The utility model discloses a kind of hydroelectric station serial ports type network security shielding system, it comprises server A and server B, server A is provided with communication interface A, server B is provided with communication interface B, the transmitting terminal of communication interface A is connected with the receiving terminal of communication interface B, the signal ground of communication interface A is connected with the signal ground of communication interface B, and the receiving terminal of communication interface A and the equal sky of the transmitting terminal of communication interface B connect.In the utility model, data can only one-way transmission, achieve the Network Isolation between real time control area and production management district, meet hydroelectric station secondary Safe Protection requirement, hardly with dropping on hardware device, be applicable to large area to use, save the expense in the information-based upgrading process in middle-size and small-size power station.
Description
Technical field
The utility model relates to network safety filed, particularly relates to hydroelectric station serial ports type network security shielding system.
Background technology
The topological structure of electric power secondary system security protection four place of safety has three kinds, these three kinds of structures all can meet the requirement of electric power secondary system security protection system, as shown in Figure 1: the data of real time control area will transfer to production management district, have to pass through Special safety spacer assembly.The general principle of existing Special safety spacer assembly is that computer system is overlapped in employing two, adopts the mode swap data of shared drive therebetween.As: the data write shared section key that A computer only will receive, B computer only reads the data in shared drive, and is forwarded.This mode forwarding speed is fast, but price is high.High with regard to the investment of Special safety spacer assembly in the information-based upgrading process in middle-size and small-size power station, need a kind of electric power secondary system security protection requirement that both met, simultaneously cheap Special safety spacer assembly.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of hydroelectric station serial ports type network security shielding system is provided, data can only one-way transmission, achieve the Network Isolation between real time control area and production management district, meet hydroelectric station secondary Safe Protection requirement, hardly with dropping on hardware device, being applicable to large area and using, save the expense in the information-based upgrading process in middle-size and small-size power station.
The purpose of this utility model is achieved through the following technical solutions: hydroelectric station serial ports type network security shielding system, it comprises server A and server B, server A is provided with communication interface A, server B is provided with communication interface B, the transmitting terminal of communication interface A is connected with the receiving terminal of communication interface B, the signal ground of communication interface A is connected with the signal ground of communication interface B, and the receiving terminal of communication interface A and the equal sky of the transmitting terminal of communication interface B connect.
Described communication interface A and communication interface B is RS-232 interface.
Described server A and server B are data server.
Described server A is arranged on the real time control area in hydroelectric station, and described server B is arranged on the production management district in hydroelectric station.
The beneficial effects of the utility model are: (1) data can only be sent to the server B in production management district, hydroelectric station by the server A being arranged on hydroelectric station real time control area, achieve the Network Isolation between real time control area and production management district, meet hydroelectric station secondary Safe Protection requirement; (2) on hardware device, use input hardly, be applicable to large area and use, save the expense in the information-based upgrading process in middle-size and small-size power station.
Accompanying drawing explanation
Fig. 1 is the topological structure of secondary Safe Protection four place of safety, existing hydroelectric station;
Fig. 2 is the structural representation of the utility model hydroelectric station serial ports type network security shielding system.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection range of the present utility model is not limited to the following stated.
As shown in Figure 2, hydroelectric station serial ports type network security shielding system, it comprises the server B in server A and the production management district, hydroelectric station being arranged on hydroelectric station real time control area, server A is provided with communication interface A, server B is provided with communication interface B, the transmitting terminal of communication interface A is connected with the receiving terminal of communication interface B, the signal ground of communication interface A is connected with the signal ground of communication interface B, as the reference potential of RS-232 transmission of data signals, the receiving terminal of communication interface A and the equal sky of the transmitting terminal of communication interface B connect.The receiving terminal of communication interface A and the transmitting terminal of communication interface B are all given it up, make data can only be sent to the server B in production management district, hydroelectric station by the server A being arranged on hydroelectric station real time control area, achieve the Network Isolation between real time control area and production management district, hardly with dropping on hardware device, being applicable to large area and using.
Described communication interface A and communication interface B is RS-232 interface.
Described server A and server B are data server.
Described communication interface A and communication interface B can also be other style interface, as RS-422/485 four-wire system and serial ports turn optical fiber interface.
Claims (4)
1. hydroelectric station serial ports type network security shielding system, it is characterized in that: it comprises server A and server B, server A is provided with communication interface A, server B is provided with communication interface B, the transmitting terminal of communication interface A is connected with the receiving terminal of communication interface B, the signal ground of communication interface A is connected with the signal ground of communication interface B, and the receiving terminal of communication interface A and the equal sky of the transmitting terminal of communication interface B connect.
2. hydroelectric station according to claim 1 serial ports type network security shielding system, is characterized in that: described communication interface A and communication interface B is RS-232 interface.
3. hydroelectric station according to claim 1 serial ports type network security shielding system, is characterized in that: described server A and server B are data server.
4. hydroelectric station according to claim 1 serial ports type network security shielding system, it is characterized in that: described server A is arranged on the real time control area in hydroelectric station, described server B is arranged on the production management district in hydroelectric station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520101452.9U CN204408385U (en) | 2015-02-12 | 2015-02-12 | Hydroelectric station serial ports type network security shielding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520101452.9U CN204408385U (en) | 2015-02-12 | 2015-02-12 | Hydroelectric station serial ports type network security shielding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204408385U true CN204408385U (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520101452.9U Active CN204408385U (en) | 2015-02-12 | 2015-02-12 | Hydroelectric station serial ports type network security shielding system |
Country Status (1)
| Country | Link |
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| CN (1) | CN204408385U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391613A (en) * | 2015-11-19 | 2016-03-09 | 四川中鼎自动控制有限公司 | Hydropower station Ethernet-type security isolation device inside-outside universal data bridge |
-
2015
- 2015-02-12 CN CN201520101452.9U patent/CN204408385U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391613A (en) * | 2015-11-19 | 2016-03-09 | 四川中鼎自动控制有限公司 | Hydropower station Ethernet-type security isolation device inside-outside universal data bridge |
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Legal Events
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |