6 results about "CPU card" patented technology

The application discloses a kind of distributed PLC edge computing systems, comprising: including several PLC units, the PLC unit includes CPU card piece, IO card piece, edge computing card piece and alarm device, the CPU card piece is connected with IO card piece and edge computing card piece respectively, IO card piece and alarm device are connected;The IO card piece is used to obtain the original data required for edge computing and is transmitted to CPU card piece, and receives alarm instruction from CPU and drives alarm device;The CPU card piece is used to forward the model parameter required for edge computing, original data to edge computing card piece, and decides whether to issue alarm instruction according to the calculation result of edge computing card piece;The edge computing card piece is used to calculate according to the original data received to determine whether to alarm;The alarm device is used to alarm according to the received alarm instruction;The application can greatly improve the efficiency and stability of system processing data.

Embodiments of the present application provide an entity identity authentication method for a quantum access control system. The system comprises a cryptographic CPU card, a cryptographic card reader, an access control system and a quantum cryptographic service platform, wherein the cryptographic CPU card, as an entity to be authenticated, is pre-charged with a key; the cryptographic card reader, as an authenticating entity, authenticates an identity credential of the entity to be authenticated; the access control system is used for storing, managing and authorizing user information; and the quantum cryptographic service platform is used for providing a quantum key, generating a salt required for authentication, and providing a cryptographic service. The novel identity authentication method based on electronic tag authentication is used between the entities so as to implement identity authentication between the card and the card reader. Compared with a conventional access control system, the embodiments of the present application support online authorization, enable unlocking in a power-off offline mode, enhance the difficulty of identity authentication between the entities by means of the quantum key, have high security, scalability and practicability, and comply with a cryptographic standard.

The invention relates to the field of servers, in particular to a server system, which comprises a barrel body with a connecting disc fixed at the upper end, a bottom plate fixed at the lower end of the barrel body, an annular cavity channel arranged on the bottom plate, an annular plate connected in the annular cavity channel, two communicating pipes arranged on the annular plate and a plurality of mounting strips penetrating through the side surface of the barrel body, a plurality of mounting grooves are formed in each mounting strip and are used for inserting CPU (Central Processing Unit) cards. The two ends of each mounting strip penetrate through the connecting disc and the bottom plate, a shifting plate is fixed to the middle of each mounting strip and located in the barrel body, a center shaft is rotationally arranged at the center of the connecting disc and the center of the bottom plate, a reciprocating groove is formed in the center of the center shaft, and the center of the shifting plate is slidably connected with the reciprocating groove. The LED lamp has good heat dissipation capability.

The application provides a CPU card security vulnerability detection method based on side channel communication analysis, comprising radio frequency signal sniffing and original data packet capturing, original data processing based on triple clue filtering method, interactive data security analysis based on characteristic factors and security analysis result output. The application realizes accurate detection and quantitative evaluation of CPU card security vulnerabilities through passive sniffing, data repair, feature extraction, multi-dimensional security analysis and optional replay verification, realizes accurate repair and feature extraction of sniffed data through the triple clue filtering method, forms a self-optimizing iteration mechanism combined with machine learning, establishes a quantitative security analysis system from two dimensions of random number properties and encryption correlation, and realizes full-dimensional and accurate detection of CPU card security vulnerabilities in cooperation with the replay verification.

The invention provides an off-line identity verification method and system based on a CPU card, a terminal and the CPU card. The method comprises the steps of obtaining an encrypted data packet, current verification time and a verification scene type of a CPU card; reading an encrypted data packet, wherein the encrypted data packet comprises a ciphertext obtained by encrypting identity information and authority rule data of a cardholder according to a preset encryption algorithm and a key; decrypting the encrypted data packet to obtain plaintext identity information and plaintext permission rule data of the cardholder; performing off-line verification on the plaintext identity information and the plaintext permission rule data according to the current verification time and the verification scene type to obtain an off-line verification result; if the offline verification result represents that the plaintext identity information and the plaintext permission rule data meet the preset identity verification requirements, an offline verification log is generated, and the offline identity verification method for the cardholder is completed, so that offline rapid verification and dynamic permission management and storage of the cardholder identity are realized, and the offline verification efficiency and accuracy are improved.

The invention discloses a high-capacity communication management device and a configuration method, and relates to the technical field of electrical energy. The device comprises a core card group, an expansion card group and a special backboard. The core card set is composed of a main CPU card, a man-machine interaction interface MMI card and a power management card. The expansion card group comprises at least one hot-pluggable expansion sub-card, and the expansion sub-card comprises a network interface CPU (Central Processing Unit) card, and / or a serial interface CPU card, and / or a CAN (Controller Area Network) bus CPU card. And the special backboard is used for physical connection and data transmission between the core card group and the expansion card group. Wherein the main CPU card and each expansion sub-card run an independent operating system and a publish-subscribe message bus, and perform data interaction through the message bus. The invention constructs a communication management device with large capacity, high reliability, easy expansibility and convenient operation and maintenance, so as to improve the overall performance and engineering applicability of an electric power communication system.