Power plant data transmission method and system integrating self-diagnosis and channel optimization
A technology of data transmission system and data transmission method, applied in the direction of digital transmission system, transmission system, data processing application, etc., can solve problems affecting DCS system maintenance management, large network security risks, etc., to ensure data security and security sex, avoiding missing effects
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Embodiment 1
[0050] A power plant data transmission method that integrates self-diagnosis and channel optimization, used for a power plant data transmission system that integrates self-diagnosis and channel optimization. The system includes DCS11, OPC server 12, and industrial firewalls that are sequentially connected in the production control area 1 13 and the first forward safety isolation device 14, the SIS firewall 21, SIS switch 22, Client server 23 and PI server 24 connected sequentially in the production non-controlled area 2, the second connected sequentially in the management area 3 Forward security isolation device 31, mirror server 32, interface server 33, SIS access switch 4 is connected between the first forward security isolation device 14 and SIS firewall 21, and the PI server 24 is connected to the second positive To the safety isolation device 31, a third forward safety isolation device 51 and a reverse safety isolation device 52 are connected between the interface server 3...
Embodiment 2
[0063] We know that the main link is established in accordance with national security standards, and it has excellent security when transmitting data, while the backup link with a relatively simple structure is bound to fail to meet the safety standards of the main link, even if the backup link is only It is enabled in very few specific cases, and the enabling time will not be too long, but it is still necessary to ensure the security of the backup link when transmitting data as much as possible. Therefore, on the basis of Embodiment 1, we can take the following measures in order to avoid potential safety hazards when using the backup link to transmit data.
[0064] In order to ensure the validity of the data source received by the interface server, verification codes can be used for verification, such as using a pre-defined verification character string on the OPC server side, plus certain rules (such as verification character string + Time stamp + sending serial number + thr...
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