Operation risk assessment method and device based on network security situation awareness system
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A situational awareness and network security technology, applied in the field of power system security, can solve the problems of limited accuracy of evaluation models, inability to quantify system security status, limited applicability of online applications, etc., to improve accuracy and comprehensiveness. Effect
Pending Publication Date: 2020-09-11
CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
View PDF3 Cites 20 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0004] However, during the research and practice of the prior art, the inventors of the present invention found that the prior art had the following defects: no effective description method was proposed for the impact of potential network security risks on system operation, and it was impossible to
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
no. 1 example
[0051] see Figure 1-3 .
[0052] like figure 1 As shown, this embodiment provides an operational risk assessment method based on a network security situational awareness system, which at least includes the following steps:
[0053] S1. Pre-collect historical data of the network security situational awareness system and analyze and process it;
[0054] In a preferred embodiment, the network security situation awareness system includes a system host, a switch, a router device, a vertical secret authentication device, a forward isolation device and a firewall device.
[0055] Specifically, for step S1, the power monitoring system includes a plurality of network security devices and components, and the state data collected and analyzed mainly from the general system host in the present invention include: login information, key file change information, USB access information, CPU usage information , memory usage information, disk usage information, network port status informati...
no. 2 example
[0110] see Figure 4 .
[0111] Such as Figure 4 As shown, this embodiment provides an operational risk assessment device based on a network security situational awareness system, including:
[0112] The data collection module 100 is used to pre-collect historical data of the network security situational awareness system and analyze and process it;
[0113] The data processing module 200 is used to perform feature selection and data preprocessing on the historical data of the network security situational awareness system, and generate a training set and a test set for training the learning model;
[0114] Model training module 300, is used for according to described training set and test set, adopts machine learning algorithm to complete the training of learning model, calculates the average accuracy rate of learning model recognition, and derives the intelligent analysis model that satisfies the accuracy rate condition;
[0115] The model prediction module 400 is used to ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention discloses an operation risk assessment method and device based on a network security situation awareness system. The method comprises the steps: collecting historical data of the networksecurity situation awareness system in advance and analyzed; performing feature selection and data preprocessing on historical data of the network security situation awareness system to generate a training set and a test set for training a learning model; completing training of a learning model by adopting a machine learning algorithm, and exporting an intelligent analysis model after the learning model meets the average accuracy requirement; calculating expected recovery power supply time and loss load of the intelligent analysis model by adopting a general recovery target algorithm of the power system; and performing risk assessment calculation according to the expected power restoration time, the loss load and the threat intrusion probability of the intelligent analysis model to obtaina corresponding network security operation loss risk value. The method and device can combine the power system intrusion probability model and the network security situation awareness system to evaluate and calculate the operation risk, thus improving the risk evaluation accuracy.
Description
technical field [0001] The invention relates to the technical field of power system security, in particular to an operation risk assessment method and device based on a network security situational awareness system. Background technique [0002] With the continuous development of power system informatization and the high integration of information technology and business, power system security threats tend to be informatized, but at the same time, power system informatization also has hidden, sudden and uncertain risks. Many countries and regions in the world have suffered huge losses due to such emergencies. Power system security risk analysis is changing from a physical security analysis focusing on engineering failures to a comprehensive security risk analysis that considers both information networks and physical systems. [0003] Existing power system network security risk assessment schemes are generally launched from the aspects of attack mechanism, cyberspace securit...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more