NFC device fingerprint authentication method and system based on CNN image recognition

A device fingerprint and image recognition technology, applied in character and pattern recognition, still image data retrieval, still image data indexing, etc., can solve the problem of NFC device fingerprint authentication, which is not much researched, and achieve high security and ensure system security. Effect

Active Publication Date: 2020-05-15
CHINA SOUTH POWER GRID ELECTRIC POWER RES INST +1
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Problems solved by technology

At present, the security research on devices in smart grid scenarios mainly focuses on access control and security assessment models, and there are not many studies on fingerprint authentication of NFC devices.

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  • NFC device fingerprint authentication method and system based on CNN image recognition
  • NFC device fingerprint authentication method and system based on CNN image recognition
  • NFC device fingerprint authentication method and system based on CNN image recognition

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Embodiment Construction

[0028] In order to make the content and effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below.

[0029] A kind of grid NFC equipment fingerprint authentication method that utilizes convolutional neural network (CNN) image recognition provided by the present invention, first collects the signal of safe NFC equipment when carrying out signal exchange with card reader through Universal Software Radio Peripherals (USRP); Use MATLAB software to preprocess the data and draw the time-domain image; then input the processed image into the convolutional neural network (CNN) to extract the corresponding features; adjust the parameters to obtain representative feature information; finally establish a positive sample model library for use for device identity authentication. The present invention provides a fingerprint authentication system for power grid NFC equipment based on CNN image recognition, and its structural...

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Abstract

The invention discloses a power grid NFC device fingerprint authentication method and system based on CNN image recognition. The method comprises the following steps: preprocessing an analog signal during data transmission of the safety NFC equipment, drawing an image by using MATLAB software, extracting features through a convolutional neural network (CNN), and establishing a model library of a positive sample, thereby realizing non-contact safety monitoring of an NFC equipment access system. Through analog signal acquisition, image data preprocessing and image feature extraction, a correct equipment model library is established, and safety monitoring of the NFC equipment of the power grid is realized. According to the invention, access safety monitoring of the NFC equipment of the powergrid can be realized, and the safety and reliability of an electric power Internet of Things system are improved.

Description

technical field [0001] The invention belongs to the field of smart grid security, and relates to a CNN image recognition-based NFC device fingerprint authentication method and system. Background technique [0002] As a platform for electric energy production and transmission, the power system is closely related to our life. In order to ensure the safety of residents' electricity use, the power system needs to meet reliability, flexibility and economy. With the rapid improvement of informatization, the power system has developed a power Internet of Things system. However, due to the heterogeneity and extensiveness of IoT terminal equipment, the power IoT faces serious network security problems in terms of system security, software trustworthiness, secure access, data collection, and intelligent management and control. In the smart grid, the nameplates and labels of electrical equipment are gradually developing in the direction of electronization. For example, the system co...

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Application Information

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IPC IPC(8): G06K9/62G06N3/04G06F16/51H04W4/80H04W12/00H04W12/06H04W12/122
CPCG06F16/51H04W4/80H04W12/06H04W12/47H04W12/71G06N3/045G06F18/241
Inventor 许爱东蒋屹新张宇南颜秉晶冀晓宇徐文渊王滨姚一杨
Owner CHINA SOUTH POWER GRID ELECTRIC POWER RES INST
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