A substation remote network test system and control method based on one-key sequential control

Abstract

The invention relates to a remote network testing system for substations based on one-key sequential control, comprising a remote cloud platform, an optocoupler isolation module, an external network communication module, an internal network testing module and a power supply module; the remote cloud platform is used for delivering network Test instructions and receiving network test results; the optocoupler isolation module includes an intranet optocoupler I / O two-way communication module and an external network optocoupler I / O two-way communication module that are electrically connected; the external network communication module and the remote The cloud platform is communicated and connected to exchange data through the network, the external network communication module is electrically connected to the external network optocoupler I / O bidirectional communication module, and the data is exchanged through the I / O volume; the internal network test module is connected to the internal network test module. The network optocoupler I / 0 two-way communication module is electrically connected, the internal network test module accesses the internal network through the internal network wired network interface and performs network testing, and communicates with the internal network optocoupler I / 0 two-way communication module through the I / O quantity. interactive data.

Description

technical field [0001] The invention relates to a substation remote network testing system and a control method based on one-key sequential control, and belongs to the technical field of data transmission of electric power systems. Background technique [0002] Mainstream isolation gatekeeper and physical isolation card technologies mainly include: Static PacketFilter, Dynamic or Stateful Packet Filter, Circuit LevelGateway, Application Level Gateway, Stateful Packet Filtering (StatefulInspection Packet Filter), switching proxy (Cutoff Proxy) and physical isolation (Air Gap); the main problems of the above-mentioned existing technologies are: 1. The system is complex, and there are a large number of black-box mechanisms, which are large except for the designer. The details cannot be known and controlled by external personnel; 2. High cost and heavy deployment workload; 3. The system often has real-time data problems, and it is necessary to complete the review, inspection and...

AI Technical Summary

Problems solved by technology

[0002] The mainstream isolation gatekeeper and physical isolation card technologies mainly include: Static Packet Filter (Static Packet Filter), Dynamic Packet Filter (Dynamic or Stateful Packet Filter), Circuit Level Gateway (Circuit Level Gateway), Application Level Gateway (Application Level Gateway), state detection Filter (StatefulInspection Packet Filter), switch agent (Cutoff Proxy) and physical isolation (Air Gap); The details cannot be known and controlled by external personnel; 2. The cost is high and the workload of deployment is heavy; 3. The system often has data real-time problems, and the network access and network output operations need to be completed after auditing and inspection processes are completed

[0005] 1. The special use environment of the substation needs to ensure 100% system safety. Even if the power supplier has passed the relevant certification, it does not substantially solve the natural problems of the technical solution, that is, there will inevitably be more places not covered by the design in the complex system. , for example: common code injection vulnerabilities are derived from the needs of functional design

[0006] 2. The cost is high and the deployment workload is heavy, so it is difficult to use it on a large scale to each substation endpoint;

[0007] 3. The problem of real-time data. The service characteristics of the substation determine the relatively high real-time requirements of the system. If audit and inspection operations are required, and if manual participation is required, the solution is actually not operable in the application background of the substation.

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